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a0d0e21e LW |
1 | =head1 NAME |
2 | ||
3 | perldiag - various Perl diagnostics | |
4 | ||
5 | =head1 DESCRIPTION | |
6 | ||
7 | These messages are classified as follows (listed in increasing order of | |
8 | desperation): | |
9 | ||
10 | (W) A warning (optional). | |
11 | (D) A deprecation (optional). | |
12 | (S) A severe warning (mandatory). | |
13 | (F) A fatal error (trappable). | |
14 | (P) An internal error you should never see (trappable). | |
54310121 | 15 | (X) A very fatal error (nontrappable). |
cb1a09d0 | 16 | (A) An alien error message (not generated by Perl). |
a0d0e21e | 17 | |
748a9306 | 18 | Optional warnings are enabled by using the B<-w> switch. Warnings may |
68dc0745 | 19 | be captured by setting C<$SIG{__WARN__}> to a reference to a routine that |
20 | will be called on each warning instead of printing it. See L<perlvar>. | |
748a9306 LW |
21 | Trappable errors may be trapped using the eval operator. See |
22 | L<perlfunc/eval>. | |
a0d0e21e LW |
23 | |
24 | Some of these messages are generic. Spots that vary are denoted with a %s, | |
2ba9eb46 | 25 | just as in a printf format. Note that some messages start with a %s! |
702d120d | 26 | The symbols C<"%(-?@> sort before the letters, while C<[> and C<\> sort after. |
a0d0e21e LW |
27 | |
28 | =over 4 | |
29 | ||
30 | =item "my" variable %s can't be in a package | |
31 | ||
32 | (F) Lexically scoped variables aren't in a package, so it doesn't make sense | |
33 | to try to declare one with a package qualifier on the front. Use local() | |
34 | if you want to localize a package variable. | |
35 | ||
2ba9eb46 | 36 | =item "my" variable %s masks earlier declaration in same scope |
37 | ||
fb73857a | 38 | (W) A lexical variable has been redeclared in the same scope, effectively |
2ba9eb46 | 39 | eliminating all access to the previous instance. This is almost always |
8b1a09fc | 40 | a typographical error. Note that the earlier variable will still exist |
2ba9eb46 | 41 | until the end of the scope or until all closure referents to it are |
42 | destroyed. | |
43 | ||
a0d0e21e LW |
44 | =item "no" not allowed in expression |
45 | ||
46 | (F) The "no" keyword is recognized and executed at compile time, and returns | |
47 | no useful value. See L<perlmod>. | |
48 | ||
49 | =item "use" not allowed in expression | |
50 | ||
51 | (F) The "use" keyword is recognized and executed at compile time, and returns | |
52 | no useful value. See L<perlmod>. | |
53 | ||
54 | =item % may only be used in unpack | |
55 | ||
5f05dabc | 56 | (F) You can't pack a string by supplying a checksum, because the |
a0d0e21e LW |
57 | checksumming process loses information, and you can't go the other |
58 | way. See L<perlfunc/unpack>. | |
59 | ||
60 | =item %s (...) interpreted as function | |
61 | ||
62 | (W) You've run afoul of the rule that says that any list operator followed | |
8b1a09fc | 63 | by parentheses turns into a function, with all the list operators arguments |
5f05dabc | 64 | found inside the parentheses. See L<perlop/Terms and List Operators (Leftward)>. |
a0d0e21e LW |
65 | |
66 | =item %s argument is not a HASH element | |
67 | ||
5f05dabc | 68 | (F) The argument to exists() must be a hash element, such as |
a0d0e21e LW |
69 | |
70 | $foo{$bar} | |
71 | $ref->[12]->{"susie"} | |
72 | ||
5f05dabc | 73 | =item %s argument is not a HASH element or slice |
74 | ||
75 | (F) The argument to delete() must be either a hash element, such as | |
76 | ||
77 | $foo{$bar} | |
78 | $ref->[12]->{"susie"} | |
79 | ||
80 | or a hash slice, such as | |
81 | ||
82 | @foo{$bar, $baz, $xyzzy} | |
83 | @{$ref->[12]}{"susie", "queue"} | |
84 | ||
a0d0e21e LW |
85 | =item %s did not return a true value |
86 | ||
87 | (F) A required (or used) file must return a true value to indicate that | |
88 | it compiled correctly and ran its initialization code correctly. It's | |
89 | traditional to end such a file with a "1;", though any true value would | |
90 | do. See L<perlfunc/require>. | |
91 | ||
92 | =item %s found where operator expected | |
93 | ||
94 | (S) The Perl lexer knows whether to expect a term or an operator. If it | |
95 | sees what it knows to be a term when it was expecting to see an operator, | |
96 | it gives you this warning. Usually it indicates that an operator or | |
97 | delimiter was omitted, such as a semicolon. | |
98 | ||
f86702cc | 99 | =item %s had compilation errors |
a0d0e21e LW |
100 | |
101 | (F) The final summary message when a C<perl -c> fails. | |
102 | ||
f86702cc | 103 | =item %s has too many errors |
a0d0e21e LW |
104 | |
105 | (F) The parser has given up trying to parse the program after 10 errors. | |
106 | Further error messages would likely be uninformative. | |
107 | ||
108 | =item %s matches null string many times | |
109 | ||
110 | (W) The pattern you've specified would be an infinite loop if the | |
111 | regular expression engine didn't specifically check for that. See L<perlre>. | |
112 | ||
113 | =item %s never introduced | |
114 | ||
115 | (S) The symbol in question was declared but somehow went out of scope | |
116 | before it could possibly have been used. | |
117 | ||
118 | =item %s syntax OK | |
119 | ||
120 | (F) The final summary message when a C<perl -c> succeeds. | |
121 | ||
f86702cc | 122 | =item %s: Command not found |
cb1a09d0 AD |
123 | |
124 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
125 | of Perl. Check the #! line, or manually feed your script into |
126 | Perl yourself. | |
cb1a09d0 | 127 | |
f86702cc | 128 | =item %s: Expression syntax |
cb1a09d0 AD |
129 | |
130 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
131 | of Perl. Check the #! line, or manually feed your script into |
132 | Perl yourself. | |
cb1a09d0 | 133 | |
f86702cc | 134 | =item %s: Undefined variable |
cb1a09d0 AD |
135 | |
136 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
137 | of Perl. Check the #! line, or manually feed your script into |
138 | Perl yourself. | |
cb1a09d0 AD |
139 | |
140 | =item %s: not found | |
141 | ||
8b1a09fc | 142 | (A) You've accidentally run your script through the Bourne shell |
3a52c276 | 143 | instead of Perl. Check the #! line, or manually feed your script |
cb1a09d0 AD |
144 | into Perl yourself. |
145 | ||
702d120d MG |
146 | =item (Missing semicolon on previous line?) |
147 | ||
148 | (S) This is an educated guess made in conjunction with the message "%s | |
149 | found where operator expected". Don't automatically put a semicolon on | |
150 | the previous line just because you saw this message. | |
151 | ||
a0d0e21e LW |
152 | =item B<-P> not allowed for setuid/setgid script |
153 | ||
154 | (F) The script would have to be opened by the C preprocessor by name, | |
155 | which provides a race condition that breaks security. | |
156 | ||
157 | =item C<-T> and C<-B> not implemented on filehandles | |
158 | ||
159 | (F) Perl can't peek at the stdio buffer of filehandles when it doesn't | |
160 | know about your kind of stdio. You'll have to use a filename instead. | |
161 | ||
08e9d68e DD |
162 | =item C<-p> destination: %s |
163 | ||
164 | (F) An error occurred during the implicit output invoked by the C<-p> | |
165 | command-line switch. (This output goes to STDOUT unless you've | |
166 | redirected it with select().) | |
167 | ||
a5f75d66 AD |
168 | =item 500 Server error |
169 | ||
170 | See Server error. | |
171 | ||
a0d0e21e LW |
172 | =item ?+* follows nothing in regexp |
173 | ||
174 | (F) You started a regular expression with a quantifier. Backslash it | |
175 | if you meant it literally. See L<perlre>. | |
176 | ||
177 | =item @ outside of string | |
178 | ||
2ba9eb46 | 179 | (F) You had a pack template that specified an absolute position outside |
a0d0e21e LW |
180 | the string being unpacked. See L<perlfunc/pack>. |
181 | ||
182 | =item accept() on closed fd | |
183 | ||
184 | (W) You tried to do an accept on a closed socket. Did you forget to check | |
185 | the return value of your socket() call? See L<perlfunc/accept>. | |
186 | ||
187 | =item Allocation too large: %lx | |
188 | ||
54310121 | 189 | (X) You can't allocate more than 64K on an MS-DOS machine. |
55497cff | 190 | |
2ae324a7 | 191 | =item Applying %s to %s will act on scalar(%s) |
192 | ||
2c268ad5 | 193 | (W) The pattern match (//), substitution (s///), and transliteration (tr///) |
2ae324a7 | 194 | operators work on scalar values. If you apply one of them to an array |
195 | or a hash, it will convert the array or hash to a scalar value -- the | |
196 | length of an array, or the population info of a hash -- and then work on | |
197 | that scalar value. This is probably not what you meant to do. See | |
198 | L<perlfunc/grep> and L<perlfunc/map> for alternatives. | |
199 | ||
a0d0e21e LW |
200 | =item Arg too short for msgsnd |
201 | ||
202 | (F) msgsnd() requires a string at least as long as sizeof(long). | |
203 | ||
748a9306 LW |
204 | =item Ambiguous use of %s resolved as %s |
205 | ||
206 | (W)(S) You said something that may not be interpreted the way | |
207 | you thought. Normally it's pretty easy to disambiguate it by supplying | |
5f05dabc | 208 | a missing quote, operator, parenthesis pair or declaration. |
748a9306 | 209 | |
5315574d GS |
210 | =item Ambiguous call resolved as CORE::%s(), qualify as such or use & |
211 | ||
212 | (W) A subroutine you have declared has the same name as a Perl keyword, | |
213 | and you have used the name without qualification for calling one or the | |
214 | other. Perl decided to call the builtin because the subroutine is | |
215 | not imported. | |
216 | ||
217 | To force interpretation as a subroutine call, either put an ampersand | |
218 | before the subroutine name, or qualify the name with its package. | |
219 | Alternatively, you can import the subroutine (or pretend that it's | |
220 | imported with the C<use subs> pragma). | |
221 | ||
222 | To silently interpret it as the Perl operator, use the C<CORE::> prefix | |
223 | on the operator (e.g. C<CORE::log($x)>) or by declaring the subroutine | |
224 | to be an object method (see L<attrs>). | |
225 | ||
a0d0e21e LW |
226 | =item Args must match #! line |
227 | ||
228 | (F) The setuid emulator requires that the arguments Perl was invoked | |
3a52c276 CS |
229 | with match the arguments specified on the #! line. Since some systems |
230 | impose a one-argument limit on the #! line, try combining switches; | |
231 | for example, turn C<-w -U> into C<-wU>. | |
a0d0e21e | 232 | |
f86702cc | 233 | =item Argument "%s" isn't numeric%s |
a0d0e21e LW |
234 | |
235 | (W) The indicated string was fed as an argument to an operator that | |
236 | expected a numeric value instead. If you're fortunate the message | |
237 | will identify which operator was so unfortunate. | |
238 | ||
239 | =item Array @%s missing the @ in argument %d of %s() | |
240 | ||
241 | (D) Really old Perl let you omit the @ on array names in some spots. This | |
242 | is now heavily deprecated. | |
243 | ||
244 | =item assertion botched: %s | |
245 | ||
246 | (P) The malloc package that comes with Perl had an internal failure. | |
247 | ||
248 | =item Assertion failed: file "%s" | |
249 | ||
250 | (P) A general assertion failed. The file in question must be examined. | |
251 | ||
252 | =item Assignment to both a list and a scalar | |
253 | ||
254 | (F) If you assign to a conditional operator, the 2nd and 3rd arguments | |
255 | must either both be scalars or both be lists. Otherwise Perl won't | |
256 | know which context to supply to the right side. | |
257 | ||
258 | =item Attempt to free non-arena SV: 0x%lx | |
259 | ||
260 | (P) All SV objects are supposed to be allocated from arenas that will | |
261 | be garbage collected on exit. An SV was discovered to be outside any | |
262 | of those arenas. | |
263 | ||
54310121 | 264 | =item Attempt to free nonexistent shared string |
bbce6d69 | 265 | |
266 | (P) Perl maintains a reference counted internal table of strings to | |
267 | optimize the storage and access of hash keys and other strings. This | |
268 | indicates someone tried to decrement the reference count of a string | |
269 | that can no longer be found in the table. | |
270 | ||
a0d0e21e LW |
271 | =item Attempt to free temp prematurely |
272 | ||
273 | (W) Mortalized values are supposed to be freed by the free_tmps() | |
274 | routine. This indicates that something else is freeing the SV before | |
275 | the free_tmps() routine gets a chance, which means that the free_tmps() | |
276 | routine will be freeing an unreferenced scalar when it does try to free | |
277 | it. | |
278 | ||
279 | =item Attempt to free unreferenced glob pointers | |
280 | ||
281 | (P) The reference counts got screwed up on symbol aliases. | |
282 | ||
283 | =item Attempt to free unreferenced scalar | |
284 | ||
285 | (W) Perl went to decrement the reference count of a scalar to see if it | |
286 | would go to 0, and discovered that it had already gone to 0 earlier, | |
287 | and should have been freed, and in fact, probably was freed. This | |
288 | could indicate that SvREFCNT_dec() was called too many times, or that | |
289 | SvREFCNT_inc() was called too few times, or that the SV was mortalized | |
290 | when it shouldn't have been, or that memory has been corrupted. | |
291 | ||
84902520 TB |
292 | =item Attempt to pack pointer to temporary value |
293 | ||
294 | (W) You tried to pass a temporary value (like the result of a | |
295 | function, or a computed expression) to the "p" pack() template. This | |
296 | means the result contains a pointer to a location that could become | |
297 | invalid anytime, even before the end of the current statement. Use | |
298 | literals or global values as arguments to the "p" pack() template to | |
299 | avoid this warning. | |
300 | ||
b7a902f4 | 301 | =item Attempt to use reference as lvalue in substr |
302 | ||
303 | (W) You supplied a reference as the first argument to substr() used | |
8b1a09fc | 304 | as an lvalue, which is pretty strange. Perhaps you forgot to |
b7a902f4 | 305 | dereference it first. See L<perlfunc/substr>. |
306 | ||
a0d0e21e LW |
307 | =item Bad arg length for %s, is %d, should be %d |
308 | ||
309 | (F) You passed a buffer of the wrong size to one of msgctl(), semctl() or | |
2ba9eb46 | 310 | shmctl(). In C parlance, the correct sizes are, respectively, |
5f05dabc | 311 | S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)>, and |
a0d0e21e LW |
312 | S<sizeof(struct shmid_ds *)>. |
313 | ||
a0d0e21e LW |
314 | =item Bad filehandle: %s |
315 | ||
316 | (F) A symbol was passed to something wanting a filehandle, but the symbol | |
317 | has no filehandle associated with it. Perhaps you didn't do an open(), or | |
318 | did it in another package. | |
319 | ||
320 | =item Bad free() ignored | |
321 | ||
322 | (S) An internal routine called free() on something that had never been | |
33c8a3fe IZ |
323 | malloc()ed in the first place. Mandatory, but can be disabled by |
324 | setting environment variable C<PERL_BADFREE> to 1. | |
325 | ||
326 | This message can be quite often seen with DB_File on systems with | |
327 | "hard" dynamic linking, like C<AIX> and C<OS/2>. It is a bug of | |
328 | C<Berkeley DB> which is left unnoticed if C<DB> uses I<forgiving> | |
329 | system malloc(). | |
a0d0e21e | 330 | |
aa689395 | 331 | =item Bad hash |
332 | ||
333 | (P) One of the internal hash routines was passed a null HV pointer. | |
334 | ||
f1192cee GA |
335 | =item Bad index while coercing array into hash |
336 | ||
6f54a448 GS |
337 | (F) The index looked up in the hash found as the 0'th element of a |
338 | pseudo-hash is not legal. Index values must be at 1 or greater. | |
339 | See L<perlref>. | |
57079c46 | 340 | |
a0d0e21e LW |
341 | =item Bad name after %s:: |
342 | ||
343 | (F) You started to name a symbol by using a package prefix, and then didn't | |
344 | finish the symbol. In particular, you can't interpolate outside of quotes, | |
345 | so | |
346 | ||
347 | $var = 'myvar'; | |
348 | $sym = mypack::$var; | |
349 | ||
350 | is not the same as | |
351 | ||
352 | $var = 'myvar'; | |
353 | $sym = "mypack::$var"; | |
354 | ||
355 | =item Bad symbol for array | |
356 | ||
357 | (P) An internal request asked to add an array entry to something that | |
358 | wasn't a symbol table entry. | |
359 | ||
360 | =item Bad symbol for filehandle | |
361 | ||
362 | (P) An internal request asked to add a filehandle entry to something that | |
363 | wasn't a symbol table entry. | |
364 | ||
365 | =item Bad symbol for hash | |
366 | ||
367 | (P) An internal request asked to add a hash entry to something that | |
368 | wasn't a symbol table entry. | |
369 | ||
8b1a09fc | 370 | =item Badly placed ()'s |
cb1a09d0 AD |
371 | |
372 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
373 | of Perl. Check the #! line, or manually feed your script into |
374 | Perl yourself. | |
cb1a09d0 | 375 | |
3fe9a6f1 | 376 | =item Bareword "%s" not allowed while "strict subs" in use |
377 | ||
378 | (F) With "strict subs" in use, a bareword is only allowed as a | |
379 | subroutine identifier, in curly braces or to the left of the "=>" symbol. | |
54310121 | 380 | Perhaps you need to predeclare a subroutine? |
3fe9a6f1 | 381 | |
c3e0f903 GS |
382 | =item Bareword "%s" refers to nonexistent package |
383 | ||
384 | (W) You used a qualified bareword of the form C<Foo::>, but | |
385 | the compiler saw no other uses of that namespace before that point. | |
386 | Perhaps you need to predeclare a package? | |
387 | ||
a0d0e21e LW |
388 | =item BEGIN failed--compilation aborted |
389 | ||
390 | (F) An untrapped exception was raised while executing a BEGIN subroutine. | |
391 | Compilation stops immediately and the interpreter is exited. | |
392 | ||
68dc0745 | 393 | =item BEGIN not safe after errors--compilation aborted |
394 | ||
395 | (F) Perl found a C<BEGIN {}> subroutine (or a C<use> directive, which | |
396 | implies a C<BEGIN {}>) after one or more compilation errors had | |
397 | already occurred. Since the intended environment for the C<BEGIN {}> | |
398 | could not be guaranteed (due to the errors), and since subsequent code | |
399 | likely depends on its correct operation, Perl just gave up. | |
400 | ||
a0d0e21e LW |
401 | =item bind() on closed fd |
402 | ||
403 | (W) You tried to do a bind on a closed socket. Did you forget to check | |
404 | the return value of your socket() call? See L<perlfunc/bind>. | |
405 | ||
4633a7c4 LW |
406 | =item Bizarre copy of %s in %s |
407 | ||
408 | (P) Perl detected an attempt to copy an internal value that is not copiable. | |
409 | ||
a0d0e21e LW |
410 | =item Callback called exit |
411 | ||
412 | (F) A subroutine invoked from an external package via perl_call_sv() | |
413 | exited by calling exit. | |
414 | ||
0a753a76 | 415 | =item Can't "goto" outside a block |
416 | ||
417 | (F) A "goto" statement was executed to jump out of what might look | |
418 | like a block, except that it isn't a proper block. This usually | |
419 | occurs if you tried to jump out of a sort() block or subroutine, which | |
420 | is a no-no. See L<perlfunc/goto>. | |
421 | ||
84902520 TB |
422 | =item Can't "goto" into the middle of a foreach loop |
423 | ||
424 | (F) A "goto" statement was executed to jump into the middle of a | |
425 | foreach loop. You can't get there from here. See L<perlfunc/goto>. | |
426 | ||
a0d0e21e LW |
427 | =item Can't "last" outside a block |
428 | ||
429 | (F) A "last" statement was executed to break out of the current block, | |
430 | except that there's this itty bitty problem called there isn't a | |
431 | current block. Note that an "if" or "else" block doesn't count as a | |
0a753a76 | 432 | "loopish" block, as doesn't a block given to sort(). You can usually double |
433 | the curlies to get the same effect though, because the inner curlies | |
434 | will be considered a block that loops once. See L<perlfunc/last>. | |
a0d0e21e LW |
435 | |
436 | =item Can't "next" outside a block | |
437 | ||
438 | (F) A "next" statement was executed to reiterate the current block, but | |
439 | there isn't a current block. Note that an "if" or "else" block doesn't | |
0a753a76 | 440 | count as a "loopish" block, as doesn't a block given to sort(). You can |
441 | usually double the curlies to get the same effect though, because the inner | |
54310121 | 442 | curlies will be considered a block that loops once. See L<perlfunc/next>. |
a0d0e21e LW |
443 | |
444 | =item Can't "redo" outside a block | |
445 | ||
446 | (F) A "redo" statement was executed to restart the current block, but | |
447 | there isn't a current block. Note that an "if" or "else" block doesn't | |
0a753a76 | 448 | count as a "loopish" block, as doesn't a block given to sort(). You can |
449 | usually double the curlies to get the same effect though, because the inner | |
54310121 | 450 | curlies will be considered a block that loops once. See L<perlfunc/redo>. |
a0d0e21e LW |
451 | |
452 | =item Can't bless non-reference value | |
453 | ||
454 | (F) Only hard references may be blessed. This is how Perl "enforces" | |
455 | encapsulation of objects. See L<perlobj>. | |
456 | ||
457 | =item Can't break at that line | |
458 | ||
54310121 | 459 | (S) A warning intended to only be printed while running within the debugger, indicating |
a0d0e21e LW |
460 | the line number specified wasn't the location of a statement that could |
461 | be stopped at. | |
462 | ||
463 | =item Can't call method "%s" in empty package "%s" | |
464 | ||
465 | (F) You called a method correctly, and it correctly indicated a package | |
466 | functioning as a class, but that package doesn't have ANYTHING defined | |
467 | in it, let alone methods. See L<perlobj>. | |
468 | ||
469 | =item Can't call method "%s" on unblessed reference | |
470 | ||
54310121 | 471 | (F) A method call must know in what package it's supposed to run. It |
a0d0e21e LW |
472 | ordinarily finds this out from the object reference you supply, but |
473 | you didn't supply an object reference in this case. A reference isn't | |
474 | an object reference until it has been blessed. See L<perlobj>. | |
475 | ||
476 | =item Can't call method "%s" without a package or object reference | |
477 | ||
478 | (F) You used the syntax of a method call, but the slot filled by the | |
479 | object reference or package name contains an expression that returns | |
480 | neither an object reference nor a package name. (Perhaps it's null?) | |
481 | Something like this will reproduce the error: | |
482 | ||
483 | $BADREF = undef; | |
484 | process $BADREF 1,2,3; | |
485 | $BADREF->process(1,2,3); | |
486 | ||
487 | =item Can't chdir to %s | |
488 | ||
489 | (F) You called C<perl -x/foo/bar>, but C</foo/bar> is not a directory | |
490 | that you can chdir to, possibly because it doesn't exist. | |
491 | ||
492 | =item Can't coerce %s to integer in %s | |
493 | ||
494 | (F) Certain types of SVs, in particular real symbol table entries | |
55497cff | 495 | (typeglobs), can't be forced to stop being what they are. So you can't |
a0d0e21e LW |
496 | say things like: |
497 | ||
498 | *foo += 1; | |
499 | ||
500 | You CAN say | |
501 | ||
502 | $foo = *foo; | |
503 | $foo += 1; | |
504 | ||
505 | but then $foo no longer contains a glob. | |
506 | ||
507 | =item Can't coerce %s to number in %s | |
508 | ||
509 | (F) Certain types of SVs, in particular real symbol table entries | |
55497cff | 510 | (typeglobs), can't be forced to stop being what they are. |
a0d0e21e LW |
511 | |
512 | =item Can't coerce %s to string in %s | |
513 | ||
514 | (F) Certain types of SVs, in particular real symbol table entries | |
55497cff | 515 | (typeglobs), can't be forced to stop being what they are. |
a0d0e21e | 516 | |
57079c46 GA |
517 | =item Can't coerce array into hash |
518 | ||
519 | (F) You used an array where a hash was expected, but the array has no | |
520 | information on how to map from keys to array indices. You can do that | |
521 | only with arrays that have a hash reference at index 0. | |
522 | ||
a0d0e21e LW |
523 | =item Can't create pipe mailbox |
524 | ||
748a9306 LW |
525 | (P) An error peculiar to VMS. The process is suffering from exhausted quotas |
526 | or other plumbing problems. | |
a0d0e21e LW |
527 | |
528 | =item Can't declare %s in my | |
529 | ||
5f05dabc | 530 | (F) Only scalar, array, and hash variables may be declared as lexical variables. |
a0d0e21e LW |
531 | They must have ordinary identifiers as names. |
532 | ||
533 | =item Can't do inplace edit on %s: %s | |
534 | ||
535 | (S) The creation of the new file failed for the indicated reason. | |
536 | ||
54310121 | 537 | =item Can't do inplace edit without backup |
a0d0e21e | 538 | |
54310121 | 539 | (F) You're on a system such as MS-DOS that gets confused if you try reading |
3fe9a6f1 | 540 | from a deleted (but still opened) file. You have to say C<-i.bak>, or some |
a0d0e21e LW |
541 | such. |
542 | ||
8b1a09fc | 543 | =item Can't do inplace edit: %s E<gt> 14 characters |
a0d0e21e LW |
544 | |
545 | (S) There isn't enough room in the filename to make a backup name for the file. | |
546 | ||
547 | =item Can't do inplace edit: %s is not a regular file | |
548 | ||
549 | (S) You tried to use the B<-i> switch on a special file, such as a file in | |
550 | /dev, or a FIFO. The file was ignored. | |
551 | ||
552 | =item Can't do setegid! | |
553 | ||
554 | (P) The setegid() call failed for some reason in the setuid emulator | |
555 | of suidperl. | |
556 | ||
557 | =item Can't do seteuid! | |
558 | ||
559 | (P) The setuid emulator of suidperl failed for some reason. | |
560 | ||
561 | =item Can't do setuid | |
562 | ||
563 | (F) This typically means that ordinary perl tried to exec suidperl to | |
564 | do setuid emulation, but couldn't exec it. It looks for a name of the | |
565 | form sperl5.000 in the same directory that the perl executable resides | |
566 | under the name perl5.000, typically /usr/local/bin on Unix machines. | |
567 | If the file is there, check the execute permissions. If it isn't, ask | |
568 | your sysadmin why he and/or she removed it. | |
569 | ||
570 | =item Can't do waitpid with flags | |
571 | ||
572 | (F) This machine doesn't have either waitpid() or wait4(), so only waitpid() | |
573 | without flags is emulated. | |
574 | ||
8b1a09fc | 575 | =item Can't do {n,m} with n E<gt> m |
a0d0e21e LW |
576 | |
577 | (F) Minima must be less than or equal to maxima. If you really want | |
578 | your regexp to match something 0 times, just put {0}. See L<perlre>. | |
579 | ||
580 | =item Can't emulate -%s on #! line | |
581 | ||
582 | (F) The #! line specifies a switch that doesn't make sense at this point. | |
583 | For example, it'd be kind of silly to put a B<-x> on the #! line. | |
584 | ||
585 | =item Can't exec "%s": %s | |
586 | ||
5f05dabc | 587 | (W) An system(), exec(), or piped open call could not execute the named |
a0d0e21e LW |
588 | program for the indicated reason. Typical reasons include: the permissions |
589 | were wrong on the file, the file wasn't found in C<$ENV{PATH}>, the | |
590 | executable in question was compiled for another architecture, or the | |
591 | #! line in a script points to an interpreter that can't be run for | |
592 | similar reasons. (Or maybe your system doesn't support #! at all.) | |
593 | ||
594 | =item Can't exec %s | |
595 | ||
596 | (F) Perl was trying to execute the indicated program for you because that's | |
597 | what the #! line said. If that's not what you wanted, you may need to | |
598 | mention "perl" on the #! line somewhere. | |
599 | ||
600 | =item Can't execute %s | |
601 | ||
2a92aaa0 GS |
602 | (F) You used the B<-S> switch, but the copies of the script to execute found |
603 | in the PATH did not have correct permissions. | |
604 | ||
605 | =item Can't find %s on PATH, '.' not in PATH | |
606 | ||
607 | (F) You used the B<-S> switch, but the script to execute could not be found | |
608 | in the PATH, or at least not with the correct permissions. The script | |
609 | exists in the current directory, but PATH prohibits running it. | |
610 | ||
611 | =item Can't find %s on PATH | |
612 | ||
a0d0e21e | 613 | (F) You used the B<-S> switch, but the script to execute could not be found |
2a92aaa0 | 614 | in the PATH. |
a0d0e21e LW |
615 | |
616 | =item Can't find label %s | |
617 | ||
618 | (F) You said to goto a label that isn't mentioned anywhere that it's possible | |
619 | for us to go to. See L<perlfunc/goto>. | |
620 | ||
621 | =item Can't find string terminator %s anywhere before EOF | |
622 | ||
623 | (F) Perl strings can stretch over multiple lines. This message means that | |
5f05dabc | 624 | the closing delimiter was omitted. Because bracketed quotes count nesting |
a0d0e21e LW |
625 | levels, the following is missing its final parenthesis: |
626 | ||
fb73857a | 627 | print q(The character '(' starts a side comment.); |
628 | ||
629 | If you're getting this error from a here-document, you may have | |
630 | included unseen whitespace before or after your closing tag. A good | |
631 | programmer's editor will have a way to help you find these characters. | |
a0d0e21e LW |
632 | |
633 | =item Can't fork | |
634 | ||
635 | (F) A fatal error occurred while trying to fork while opening a pipeline. | |
636 | ||
748a9306 LW |
637 | =item Can't get filespec - stale stat buffer? |
638 | ||
639 | (S) A warning peculiar to VMS. This arises because of the difference between | |
640 | access checks under VMS and under the Unix model Perl assumes. Under VMS, | |
641 | access checks are done by filename, rather than by bits in the stat buffer, so | |
642 | that ACLs and other protections can be taken into account. Unfortunately, Perl | |
643 | assumes that the stat buffer contains all the necessary information, and passes | |
644 | it, instead of the filespec, to the access checking routine. It will try to | |
645 | retrieve the filespec using the device name and FID present in the stat buffer, | |
646 | but this works only if you haven't made a subsequent call to the CRTL stat() | |
5f05dabc | 647 | routine, because the device name is overwritten with each call. If this warning |
748a9306 LW |
648 | appears, the name lookup failed, and the access checking routine gave up and |
649 | returned FALSE, just to be conservative. (Note: The access checking routine | |
650 | knows about the Perl C<stat> operator and file tests, so you shouldn't ever | |
651 | see this warning in response to a Perl command; it arises only if some internal | |
652 | code takes stat buffers lightly.) | |
653 | ||
a0d0e21e LW |
654 | =item Can't get pipe mailbox device name |
655 | ||
748a9306 LW |
656 | (P) An error peculiar to VMS. After creating a mailbox to act as a pipe, Perl |
657 | can't retrieve its name for later use. | |
a0d0e21e LW |
658 | |
659 | =item Can't get SYSGEN parameter value for MAXBUF | |
660 | ||
748a9306 LW |
661 | (P) An error peculiar to VMS. Perl asked $GETSYI how big you want your |
662 | mailbox buffers to be, and didn't get an answer. | |
a0d0e21e LW |
663 | |
664 | =item Can't goto subroutine outside a subroutine | |
665 | ||
666 | (F) The deeply magical "goto subroutine" call can only replace one subroutine | |
667 | call for another. It can't manufacture one out of whole cloth. In general | |
5f05dabc | 668 | you should be calling it out of only an AUTOLOAD routine anyway. See |
a0d0e21e LW |
669 | L<perlfunc/goto>. |
670 | ||
b150fb22 RH |
671 | =item Can't goto subroutine from an eval-string |
672 | ||
673 | (F) The "goto subroutine" call can't be used to jump out of an eval "string". | |
674 | (You can use it to jump out of an eval {BLOCK}, but you probably don't want to.) | |
675 | ||
706a304b | 676 | =item Can't localize through a reference |
4633a7c4 | 677 | |
706a304b SM |
678 | (F) You said something like C<local $$ref>, which Perl can't currently |
679 | handle, because when it goes to restore the old value of whatever $ref | |
680 | pointed to after the scope of the local() is finished, it can't be | |
681 | sure that $ref will still be a reference. | |
4633a7c4 | 682 | |
748a9306 LW |
683 | =item Can't localize lexical variable %s |
684 | ||
2ba9eb46 | 685 | (F) You used local on a variable name that was previously declared as a |
748a9306 LW |
686 | lexical variable using "my". This is not allowed. If you want to |
687 | localize a package variable of the same name, qualify it with the | |
688 | package name. | |
689 | ||
4727527e IZ |
690 | =item Can't locate auto/%s.al in @INC |
691 | ||
692 | (F) A function (or method) was called in a package which allows autoload, | |
693 | but there is no function to autoload. Most probable causes are a misprint | |
694 | in a function/method name or a failure to C<AutoSplit> the file, say, by | |
695 | doing C<make install>. | |
696 | ||
38b8243a | 697 | =item Can't locate %s in @INC |
a0d0e21e | 698 | |
7a2e2cd6 | 699 | (F) You said to do (or require, or use) a file that couldn't be found |
54310121 | 700 | in any of the libraries mentioned in @INC. Perhaps you need to set the |
701 | PERL5LIB or PERL5OPT environment variable to say where the extra library | |
702 | is, or maybe the script needs to add the library name to @INC. Or maybe | |
a0d0e21e LW |
703 | you just misspelled the name of the file. See L<perlfunc/require>. |
704 | ||
705 | =item Can't locate object method "%s" via package "%s" | |
706 | ||
707 | (F) You called a method correctly, and it correctly indicated a package | |
708 | functioning as a class, but that package doesn't define that particular | |
2ba9eb46 | 709 | method, nor does any of its base classes. See L<perlobj>. |
a0d0e21e LW |
710 | |
711 | =item Can't locate package %s for @%s::ISA | |
712 | ||
713 | (W) The @ISA array contained the name of another package that doesn't seem | |
714 | to exist. | |
715 | ||
3e3baf6d TB |
716 | =item Can't make list assignment to \%ENV on this system |
717 | ||
718 | (F) List assignment to %ENV is not supported on some systems, notably VMS. | |
719 | ||
a0d0e21e LW |
720 | =item Can't modify %s in %s |
721 | ||
722 | (F) You aren't allowed to assign to the item indicated, or otherwise try to | |
5f05dabc | 723 | change it, such as with an auto-increment. |
a0d0e21e | 724 | |
54310121 | 725 | =item Can't modify nonexistent substring |
a0d0e21e LW |
726 | |
727 | (P) The internal routine that does assignment to a substr() was handed | |
728 | a NULL. | |
729 | ||
5f05dabc | 730 | =item Can't msgrcv to read-only var |
a0d0e21e | 731 | |
5f05dabc | 732 | (F) The target of a msgrcv must be modifiable to be used as a receive |
a0d0e21e LW |
733 | buffer. |
734 | ||
735 | =item Can't open %s: %s | |
736 | ||
08e9d68e DD |
737 | (S) The implicit opening of a file through use of the C<E<lt>E<gt>> |
738 | filehandle, either implicitly under the C<-n> or C<-p> command-line | |
739 | switches, or explicitly, failed for the indicated reason. Usually this | |
740 | is because you don't have read permission for a file which you named | |
741 | on the command line. | |
a0d0e21e LW |
742 | |
743 | =item Can't open bidirectional pipe | |
744 | ||
745 | (W) You tried to say C<open(CMD, "|cmd|")>, which is not supported. You can | |
746 | try any of several modules in the Perl library to do this, such as | |
7e1af8bc | 747 | IPC::Open2. Alternately, direct the pipe's output to a file using "E<gt>", |
a0d0e21e LW |
748 | and then read it in under a different file handle. |
749 | ||
748a9306 LW |
750 | =item Can't open error file %s as stderr |
751 | ||
752 | (F) An error peculiar to VMS. Perl does its own command line redirection, and | |
8b1a09fc | 753 | couldn't open the file specified after '2E<gt>' or '2E<gt>E<gt>' on the |
754 | command line for writing. | |
748a9306 LW |
755 | |
756 | =item Can't open input file %s as stdin | |
757 | ||
758 | (F) An error peculiar to VMS. Perl does its own command line redirection, and | |
8b1a09fc | 759 | couldn't open the file specified after 'E<lt>' on the command line for reading. |
748a9306 LW |
760 | |
761 | =item Can't open output file %s as stdout | |
762 | ||
763 | (F) An error peculiar to VMS. Perl does its own command line redirection, and | |
8b1a09fc | 764 | couldn't open the file specified after 'E<gt>' or 'E<gt>E<gt>' on the command |
765 | line for writing. | |
748a9306 LW |
766 | |
767 | =item Can't open output pipe (name: %s) | |
768 | ||
769 | (P) An error peculiar to VMS. Perl does its own command line redirection, and | |
770 | couldn't open the pipe into which to send data destined for stdout. | |
771 | ||
a0d0e21e LW |
772 | =item Can't open perl script "%s": %s |
773 | ||
774 | (F) The script you specified can't be opened for the indicated reason. | |
775 | ||
7bac28a0 | 776 | =item Can't redefine active sort subroutine %s |
777 | ||
778 | (F) Perl optimizes the internal handling of sort subroutines and keeps | |
779 | pointers into them. You tried to redefine one such sort subroutine when it | |
780 | was currently active, which is not allowed. If you really want to do | |
781 | this, you should write C<sort { &func } @x> instead of C<sort func @x>. | |
782 | ||
a0d0e21e LW |
783 | =item Can't rename %s to %s: %s, skipping file |
784 | ||
785 | (S) The rename done by the B<-i> switch failed for some reason, probably because | |
786 | you don't have write permission to the directory. | |
787 | ||
748a9306 LW |
788 | =item Can't reopen input pipe (name: %s) in binary mode |
789 | ||
790 | (P) An error peculiar to VMS. Perl thought stdin was a pipe, and tried to | |
791 | reopen it to accept binary data. Alas, it failed. | |
792 | ||
a0d0e21e LW |
793 | =item Can't reswap uid and euid |
794 | ||
795 | (P) The setreuid() call failed for some reason in the setuid emulator | |
796 | of suidperl. | |
797 | ||
798 | =item Can't return outside a subroutine | |
799 | ||
800 | (F) The return statement was executed in mainline code, that is, where | |
801 | there was no subroutine call to return out of. See L<perlsub>. | |
802 | ||
803 | =item Can't stat script "%s" | |
804 | ||
805 | (P) For some reason you can't fstat() the script even though you have | |
806 | it open already. Bizarre. | |
807 | ||
808 | =item Can't swap uid and euid | |
809 | ||
810 | (P) The setreuid() call failed for some reason in the setuid emulator | |
811 | of suidperl. | |
812 | ||
813 | =item Can't take log of %g | |
814 | ||
fb73857a | 815 | (F) For ordinary real numbers, you can't take the logarithm of a |
816 | negative number or zero. There's a Math::Complex package that comes | |
817 | standard with Perl, though, if you really want to do that for | |
818 | the negative numbers. | |
a0d0e21e LW |
819 | |
820 | =item Can't take sqrt of %g | |
821 | ||
822 | (F) For ordinary real numbers, you can't take the square root of a | |
fb73857a | 823 | negative number. There's a Math::Complex package that comes standard |
824 | with Perl, though, if you really want to do that. | |
a0d0e21e LW |
825 | |
826 | =item Can't undef active subroutine | |
827 | ||
828 | (F) You can't undefine a routine that's currently running. You can, | |
829 | however, redefine it while it's running, and you can even undef the | |
830 | redefined subroutine while the old routine is running. Go figure. | |
831 | ||
832 | =item Can't unshift | |
833 | ||
834 | (F) You tried to unshift an "unreal" array that can't be unshifted, such | |
835 | as the main Perl stack. | |
836 | ||
837 | =item Can't upgrade that kind of scalar | |
838 | ||
839 | (P) The internal sv_upgrade routine adds "members" to an SV, making | |
840 | it into a more specialized kind of SV. The top several SV types are | |
841 | so specialized, however, that they cannot be interconverted. This | |
842 | message indicates that such a conversion was attempted. | |
843 | ||
844 | =item Can't upgrade to undef | |
845 | ||
846 | (P) The undefined SV is the bottom of the totem pole, in the scheme | |
847 | of upgradability. Upgrading to undef indicates an error in the | |
848 | code calling sv_upgrade. | |
849 | ||
1d2dff63 GS |
850 | =item Can't use %%! because Errno.pm is not available |
851 | ||
852 | (F) The first time the %! hash is used, perl automatically loads the | |
853 | Errno.pm module. The Errno module is expected to tie the %! hash to | |
854 | provide symbolic names for C<$!> errno values. | |
855 | ||
c07a80fd | 856 | =item Can't use "my %s" in sort comparison |
857 | ||
858 | (F) The global variables $a and $b are reserved for sort comparisons. | |
8b1a09fc | 859 | You mentioned $a or $b in the same line as the E<lt>=E<gt> or cmp operator, |
c07a80fd | 860 | and the variable had earlier been declared as a lexical variable. |
861 | Either qualify the sort variable with the package name, or rename the | |
862 | lexical variable. | |
863 | ||
a0d0e21e LW |
864 | =item Can't use %s for loop variable |
865 | ||
866 | (F) Only a simple scalar variable may be used as a loop variable on a foreach. | |
867 | ||
868 | =item Can't use %s ref as %s ref | |
869 | ||
870 | (F) You've mixed up your reference types. You have to dereference a | |
871 | reference of the type needed. You can use the ref() function to | |
872 | test the type of the reference, if need be. | |
873 | ||
748a9306 LW |
874 | =item Can't use \1 to mean $1 in expression |
875 | ||
876 | (W) In an ordinary expression, backslash is a unary operator that creates | |
877 | a reference to its argument. The use of backslash to indicate a backreference | |
5f05dabc | 878 | to a matched substring is valid only as part of a regular expression pattern. |
748a9306 LW |
879 | Trying to do this in ordinary Perl code produces a value that prints |
880 | out looking like SCALAR(0xdecaf). Use the $1 form instead. | |
881 | ||
44a8e56a | 882 | =item Can't use bareword ("%s") as %s ref while \"strict refs\" in use |
883 | ||
884 | (F) Only hard references are allowed by "strict refs". Symbolic references | |
885 | are disallowed. See L<perlref>. | |
886 | ||
748a9306 | 887 | =item Can't use string ("%s") as %s ref while "strict refs" in use |
a0d0e21e LW |
888 | |
889 | (F) Only hard references are allowed by "strict refs". Symbolic references | |
890 | are disallowed. See L<perlref>. | |
891 | ||
892 | =item Can't use an undefined value as %s reference | |
893 | ||
894 | (F) A value used as either a hard reference or a symbolic reference must | |
54310121 | 895 | be a defined value. This helps to delurk some insidious errors. |
a0d0e21e | 896 | |
a0d0e21e LW |
897 | =item Can't use global %s in "my" |
898 | ||
899 | (F) You tried to declare a magical variable as a lexical variable. This is | |
5f05dabc | 900 | not allowed, because the magic can be tied to only one location (namely |
a0d0e21e LW |
901 | the global variable) and it would be incredibly confusing to have |
902 | variables in your program that looked like magical variables but | |
903 | weren't. | |
904 | ||
748a9306 LW |
905 | =item Can't use subscript on %s |
906 | ||
907 | (F) The compiler tried to interpret a bracketed expression as a | |
908 | subscript. But to the left of the brackets was an expression that | |
909 | didn't look like an array reference, or anything else subscriptable. | |
910 | ||
5f05dabc | 911 | =item Can't x= to read-only value |
a0d0e21e LW |
912 | |
913 | (F) You tried to repeat a constant value (often the undefined value) with | |
914 | an assignment operator, which implies modifying the value itself. | |
915 | Perhaps you need to copy the value to a temporary, and repeat that. | |
916 | ||
b6c543e3 IZ |
917 | =item Cannot find an opnumber for "%s" |
918 | ||
919 | (F) A string of a form C<CORE::word> was given to prototype(), but | |
920 | there is no builtin with the name C<word>. | |
921 | ||
e7ea3e70 IZ |
922 | =item Cannot resolve method `%s' overloading `%s' in package `%s' |
923 | ||
924 | (F|P) Error resolving overloading specified by a method name (as | |
925 | opposed to a subroutine reference): no such method callable via the | |
926 | package. If method name is C<???>, this is an internal error. | |
927 | ||
4599a1de JH |
928 | =item Character class syntax [. .] is reserved for future extensions |
929 | ||
930 | (W) Within regular expression character classes ([]) the syntax beginning | |
931 | with "[." and ending with ".]" is reserved for future extensions. | |
932 | If you need to represent those character sequences inside a regular | |
933 | expression character class, just quote the square brackets with the | |
934 | backslash: "\[." and ".\]". | |
935 | ||
936 | =item Character class syntax [: :] is reserved for future extensions | |
937 | ||
938 | (W) Within regular expression character classes ([]) the syntax beginning | |
939 | with "[:" and ending with ":]" is reserved for future extensions. | |
940 | If you need to represent those character sequences inside a regular | |
941 | expression character class, just quote the square brackets with the | |
942 | backslash: "\[:" and ":\]". | |
943 | ||
944 | =item Character class syntax [= =] is reserved for future extensions | |
945 | ||
946 | (W) Within regular expression character classes ([]) the syntax | |
947 | beginning with "[=" and ending with "=]" is reserved for future extensions. | |
948 | If you need to represent those character sequences inside a regular | |
949 | expression character class, just quote the square brackets with the | |
950 | backslash: "\[=" and "=\]". | |
951 | ||
a0d0e21e LW |
952 | =item chmod: mode argument is missing initial 0 |
953 | ||
954 | (W) A novice will sometimes say | |
955 | ||
956 | chmod 777, $filename | |
957 | ||
958 | not realizing that 777 will be interpreted as a decimal number, equivalent | |
959 | to 01411. Octal constants are introduced with a leading 0 in Perl, as in C. | |
960 | ||
8b1a09fc | 961 | =item Close on unopened file E<lt>%sE<gt> |
a0d0e21e LW |
962 | |
963 | (W) You tried to close a filehandle that was never opened. | |
964 | ||
7a2e2cd6 | 965 | =item Compilation failed in require |
966 | ||
967 | (F) Perl could not compile a file specified in a C<require> statement. | |
968 | Perl uses this generic message when none of the errors that it encountered | |
969 | were severe enough to halt compilation immediately. | |
970 | ||
a0d0e21e LW |
971 | =item connect() on closed fd |
972 | ||
973 | (W) You tried to do a connect on a closed socket. Did you forget to check | |
974 | the return value of your socket() call? See L<perlfunc/connect>. | |
975 | ||
4cee8e80 CS |
976 | =item Constant subroutine %s redefined |
977 | ||
978 | (S) You redefined a subroutine which had previously been eligible for | |
979 | inlining. See L<perlsub/"Constant Functions"> for commentary and | |
980 | workarounds. | |
981 | ||
9607fc9c | 982 | =item Constant subroutine %s undefined |
983 | ||
984 | (S) You undefined a subroutine which had previously been eligible for | |
985 | inlining. See L<perlsub/"Constant Functions"> for commentary and | |
986 | workarounds. | |
987 | ||
e7ea3e70 IZ |
988 | =item Copy method did not return a reference |
989 | ||
990 | (F) The method which overloads "=" is buggy. See L<overload/Copy Constructor>. | |
991 | ||
a0d0e21e LW |
992 | =item Corrupt malloc ptr 0x%lx at 0x%lx |
993 | ||
994 | (P) The malloc package that comes with Perl had an internal failure. | |
995 | ||
996 | =item corrupted regexp pointers | |
997 | ||
998 | (P) The regular expression engine got confused by what the regular | |
999 | expression compiler gave it. | |
1000 | ||
1001 | =item corrupted regexp program | |
1002 | ||
1003 | (P) The regular expression engine got passed a regexp program without | |
1004 | a valid magic number. | |
1005 | ||
1006 | =item Deep recursion on subroutine "%s" | |
1007 | ||
1008 | (W) This subroutine has called itself (directly or indirectly) 100 | |
3e3baf6d | 1009 | times more than it has returned. This probably indicates an infinite |
a0d0e21e LW |
1010 | recursion, unless you're writing strange benchmark programs, in which |
1011 | case it indicates something else. | |
1012 | ||
fc36a67e | 1013 | =item Delimiter for here document is too long |
1014 | ||
1015 | (F) In a here document construct like C<E<lt>E<lt>FOO>, the label | |
1016 | C<FOO> is too long for Perl to handle. You have to be seriously | |
1017 | twisted to write code that triggers this error. | |
1018 | ||
4633a7c4 LW |
1019 | =item Did you mean &%s instead? |
1020 | ||
1021 | (W) You probably referred to an imported subroutine &FOO as $FOO or some such. | |
1022 | ||
748a9306 | 1023 | =item Did you mean $ or @ instead of %? |
a0d0e21e | 1024 | |
748a9306 LW |
1025 | (W) You probably said %hash{$key} when you meant $hash{$key} or @hash{@keys}. |
1026 | On the other hand, maybe you just meant %hash and got carried away. | |
1027 | ||
7e1af8bc | 1028 | =item Died |
5f05dabc | 1029 | |
1030 | (F) You passed die() an empty string (the equivalent of C<die "">) or | |
1031 | you called it with no args and both C<$@> and C<$_> were empty. | |
1032 | ||
54310121 | 1033 | =item Do you need to predeclare %s? |
748a9306 LW |
1034 | |
1035 | (S) This is an educated guess made in conjunction with the message "%s | |
1036 | found where operator expected". It often means a subroutine or module | |
1037 | name is being referenced that hasn't been declared yet. This may be | |
1038 | because of ordering problems in your file, or because of a missing | |
1039 | "sub", "package", "require", or "use" statement. If you're | |
1040 | referencing something that isn't defined yet, you don't actually have | |
1041 | to define the subroutine or package before the current location. You | |
1042 | can use an empty "sub foo;" or "package FOO;" to enter a "forward" | |
1043 | declaration. | |
a0d0e21e LW |
1044 | |
1045 | =item Don't know how to handle magic of type '%s' | |
1046 | ||
1047 | (P) The internal handling of magical variables has been cursed. | |
1048 | ||
1049 | =item do_study: out of memory | |
1050 | ||
1051 | (P) This should have been caught by safemalloc() instead. | |
1052 | ||
1053 | =item Duplicate free() ignored | |
1054 | ||
1055 | (S) An internal routine called free() on something that had already | |
1056 | been freed. | |
1057 | ||
4633a7c4 LW |
1058 | =item elseif should be elsif |
1059 | ||
1060 | (S) There is no keyword "elseif" in Perl because Larry thinks it's | |
1061 | ugly. Your code will be interpreted as an attempt to call a method | |
1062 | named "elseif" for the class returned by the following block. This is | |
1063 | unlikely to be what you want. | |
1064 | ||
a0d0e21e LW |
1065 | =item END failed--cleanup aborted |
1066 | ||
1067 | (F) An untrapped exception was raised while executing an END subroutine. | |
1068 | The interpreter is immediately exited. | |
1069 | ||
748a9306 LW |
1070 | =item Error converting file specification %s |
1071 | ||
5f05dabc | 1072 | (F) An error peculiar to VMS. Because Perl may have to deal with file |
748a9306 LW |
1073 | specifications in either VMS or Unix syntax, it converts them to a |
1074 | single form when it must operate on them directly. Either you've | |
1075 | passed an invalid file specification to Perl, or you've found a | |
1076 | case the conversion routines don't handle. Drat. | |
1077 | ||
e4d48cc9 GS |
1078 | =item %s: Eval-group in insecure regular expression |
1079 | ||
1080 | (F) Perl detected tainted data when trying to compile a regular expression | |
1081 | that contains the C<(?{ ... })> zero-width assertion, which is unsafe. | |
1082 | See L<perlre/(?{ code })>, and L<perlsec>. | |
1083 | ||
1084 | =item %s: Eval-group not allowed, use re 'eval' | |
1085 | ||
1086 | (F) A regular expression contained the C<(?{ ... })> zero-width assertion, | |
1087 | but that construct is only allowed when the C<use re 'eval'> pragma is | |
1088 | in effect. See L<perlre/(?{ code })>. | |
1089 | ||
1090 | =item %s: Eval-group not allowed at run time | |
1091 | ||
1092 | (F) Perl tried to compile a regular expression containing the C<(?{ ... })> | |
3c247ff3 GS |
1093 | zero-width assertion at run time, as it would when the pattern contains |
1094 | interpolated values. Since that is a security risk, it is not allowed. | |
e4d48cc9 GS |
1095 | If you insist, you may still do this by explicitly building the pattern |
1096 | from an interpolated string at run time and using that in an eval(). | |
1097 | See L<perlre/(?{ code })>. | |
1098 | ||
fc36a67e | 1099 | =item Excessively long <> operator |
1100 | ||
1101 | (F) The contents of a <> operator may not exceed the maximum size of a | |
1102 | Perl identifier. If you're just trying to glob a long list of | |
1103 | filenames, try using the glob() operator, or put the filenames into a | |
1104 | variable and glob that. | |
1105 | ||
f86702cc | 1106 | =item Execution of %s aborted due to compilation errors |
a0d0e21e LW |
1107 | |
1108 | (F) The final summary message when a Perl compilation fails. | |
1109 | ||
1110 | =item Exiting eval via %s | |
1111 | ||
8b1a09fc | 1112 | (W) You are exiting an eval by unconventional means, such as |
a0d0e21e LW |
1113 | a goto, or a loop control statement. |
1114 | ||
0a753a76 | 1115 | =item Exiting pseudo-block via %s |
1116 | ||
1117 | (W) You are exiting a rather special block construct (like a sort block or | |
1118 | subroutine) by unconventional means, such as a goto, or a loop control | |
1119 | statement. See L<perlfunc/sort>. | |
1120 | ||
a0d0e21e LW |
1121 | =item Exiting subroutine via %s |
1122 | ||
8b1a09fc | 1123 | (W) You are exiting a subroutine by unconventional means, such as |
a0d0e21e LW |
1124 | a goto, or a loop control statement. |
1125 | ||
1126 | =item Exiting substitution via %s | |
1127 | ||
8b1a09fc | 1128 | (W) You are exiting a substitution by unconventional means, such as |
a0d0e21e LW |
1129 | a return, a goto, or a loop control statement. |
1130 | ||
7b8d334a GS |
1131 | =item Explicit blessing to '' (assuming package main) |
1132 | ||
1133 | (W) You are blessing a reference to a zero length string. This has | |
1134 | the effect of blessing the reference into the package main. This is | |
1135 | usually not what you want. Consider providing a default target | |
1136 | package, e.g. bless($ref, $p or 'MyPackage'); | |
1137 | ||
748a9306 | 1138 | =item Fatal VMS error at %s, line %d |
a0d0e21e | 1139 | |
748a9306 LW |
1140 | (P) An error peculiar to VMS. Something untoward happened in a VMS system |
1141 | service or RTL routine; Perl's exit status should provide more details. The | |
1142 | filename in "at %s" and the line number in "line %d" tell you which section of | |
1143 | the Perl source code is distressed. | |
a0d0e21e LW |
1144 | |
1145 | =item fcntl is not implemented | |
1146 | ||
1147 | (F) Your machine apparently doesn't implement fcntl(). What is this, a | |
1148 | PDP-11 or something? | |
1149 | ||
1150 | =item Filehandle %s never opened | |
1151 | ||
1152 | (W) An I/O operation was attempted on a filehandle that was never initialized. | |
1153 | You need to do an open() or a socket() call, or call a constructor from | |
1154 | the FileHandle package. | |
1155 | ||
5f05dabc | 1156 | =item Filehandle %s opened for only input |
a0d0e21e LW |
1157 | |
1158 | (W) You tried to write on a read-only filehandle. If you | |
1159 | intended it to be a read-write filehandle, you needed to open it with | |
8b1a09fc | 1160 | "+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If |
5f05dabc | 1161 | you intended only to write the file, use "E<gt>" or "E<gt>E<gt>". See |
8b1a09fc | 1162 | L<perlfunc/open>. |
a0d0e21e | 1163 | |
5f05dabc | 1164 | =item Filehandle opened for only input |
a0d0e21e LW |
1165 | |
1166 | (W) You tried to write on a read-only filehandle. If you | |
1167 | intended it to be a read-write filehandle, you needed to open it with | |
8b1a09fc | 1168 | "+E<lt>" or "+E<gt>" or "+E<gt>E<gt>" instead of with "E<lt>" or nothing. If |
5f05dabc | 1169 | you intended only to write the file, use "E<gt>" or "E<gt>E<gt>". See |
8b1a09fc | 1170 | L<perlfunc/open>. |
a0d0e21e LW |
1171 | |
1172 | =item Final $ should be \$ or $name | |
1173 | ||
1174 | (F) You must now decide whether the final $ in a string was meant to be | |
1175 | a literal dollar sign, or was meant to introduce a variable name | |
1176 | that happens to be missing. So you have to put either the backslash or | |
1177 | the name. | |
1178 | ||
1179 | =item Final @ should be \@ or @name | |
1180 | ||
1181 | (F) You must now decide whether the final @ in a string was meant to be | |
1182 | a literal "at" sign, or was meant to introduce a variable name | |
1183 | that happens to be missing. So you have to put either the backslash or | |
1184 | the name. | |
1185 | ||
1186 | =item Format %s redefined | |
1187 | ||
1188 | (W) You redefined a format. To suppress this warning, say | |
1189 | ||
1190 | { | |
1191 | local $^W = 0; | |
1192 | eval "format NAME =..."; | |
1193 | } | |
1194 | ||
1195 | =item Format not terminated | |
1196 | ||
1197 | (F) A format must be terminated by a line with a solitary dot. Perl got | |
1198 | to the end of your file without finding such a line. | |
1199 | ||
1200 | =item Found = in conditional, should be == | |
1201 | ||
1202 | (W) You said | |
1203 | ||
1204 | if ($foo = 123) | |
1205 | ||
1206 | when you meant | |
1207 | ||
1208 | if ($foo == 123) | |
1209 | ||
1210 | (or something like that). | |
1211 | ||
1212 | =item gdbm store returned %d, errno %d, key "%s" | |
1213 | ||
1214 | (S) A warning from the GDBM_File extension that a store failed. | |
1215 | ||
1216 | =item gethostent not implemented | |
1217 | ||
1218 | (F) Your C library apparently doesn't implement gethostent(), probably | |
1219 | because if it did, it'd feel morally obligated to return every hostname | |
1220 | on the Internet. | |
1221 | ||
1222 | =item get{sock,peer}name() on closed fd | |
1223 | ||
1224 | (W) You tried to get a socket or peer socket name on a closed socket. | |
1225 | Did you forget to check the return value of your socket() call? | |
1226 | ||
748a9306 LW |
1227 | =item getpwnam returned invalid UIC %#o for user "%s" |
1228 | ||
1229 | (S) A warning peculiar to VMS. The call to C<sys$getuai> underlying the | |
1230 | C<getpwnam> operator returned an invalid UIC. | |
1231 | ||
1232 | ||
a0d0e21e LW |
1233 | =item Glob not terminated |
1234 | ||
1235 | (F) The lexer saw a left angle bracket in a place where it was expecting | |
1236 | a term, so it's looking for the corresponding right angle bracket, and not | |
1237 | finding it. Chances are you left some needed parentheses out earlier in | |
1238 | the line, and you really meant a "less than". | |
1239 | ||
1240 | =item Global symbol "%s" requires explicit package name | |
1241 | ||
68dc0745 | 1242 | (F) You've said "use strict vars", which indicates that all variables |
1243 | must either be lexically scoped (using "my"), or explicitly qualified to | |
a0d0e21e LW |
1244 | say which package the global variable is in (using "::"). |
1245 | ||
1246 | =item goto must have label | |
1247 | ||
1248 | (F) Unlike with "next" or "last", you're not allowed to goto an | |
1249 | unspecified destination. See L<perlfunc/goto>. | |
1250 | ||
1251 | =item Had to create %s unexpectedly | |
1252 | ||
1253 | (S) A routine asked for a symbol from a symbol table that ought to have | |
1254 | existed already, but for some reason it didn't, and had to be created on | |
1255 | an emergency basis to prevent a core dump. | |
1256 | ||
1257 | =item Hash %%s missing the % in argument %d of %s() | |
1258 | ||
1259 | (D) Really old Perl let you omit the % on hash names in some spots. This | |
1260 | is now heavily deprecated. | |
1261 | ||
8903cb82 | 1262 | =item Identifier too long |
1263 | ||
1264 | (F) Perl limits identifiers (names for variables, functions, etc.) to | |
fc36a67e | 1265 | about 250 characters for simple names, and somewhat more for compound |
1266 | names (like C<$A::B>). You've exceeded Perl's limits. Future | |
1267 | versions of Perl are likely to eliminate these arbitrary limitations. | |
8903cb82 | 1268 | |
8b1a09fc | 1269 | =item Ill-formed logical name |%s| in prime_env_iter |
a0d0e21e | 1270 | |
8b1a09fc | 1271 | (W) A warning peculiar to VMS. A logical name was encountered when preparing |
1272 | to iterate over %ENV which violates the syntactic rules governing logical | |
5f05dabc | 1273 | names. Because it cannot be translated normally, it is skipped, and will not |
1274 | appear in %ENV. This may be a benign occurrence, as some software packages | |
54310121 | 1275 | might directly modify logical name tables and introduce nonstandard names, |
8b1a09fc | 1276 | or it may indicate that a logical name table has been corrupted. |
a0d0e21e | 1277 | |
4fdae800 | 1278 | =item Illegal character %s (carriage return) |
1279 | ||
1280 | (F) A carriage return character was found in the input. This is an | |
1281 | error, and not a warning, because carriage return characters can break | |
54310121 | 1282 | multi-line strings, including here documents (e.g., C<print E<lt>E<lt>EOF;>). |
1283 | ||
1284 | Under Unix, this error is usually caused by executing Perl code -- | |
68dc0745 | 1285 | either the main program, a module, or an eval'd string -- that was |
54310121 | 1286 | transferred over a network connection from a non-Unix system without |
68dc0745 | 1287 | properly converting the text file format. |
1288 | ||
1289 | Under systems that use something other than '\n' to delimit lines of | |
1290 | text, this error can also be caused by reading Perl code from a file | |
1291 | handle that is in binary mode (as set by the C<binmode> operator). | |
1292 | ||
1293 | In either case, the Perl code in question will probably need to be | |
1294 | converted with something like C<s/\x0D\x0A?/\n/g> before it can be | |
1295 | executed. | |
4fdae800 | 1296 | |
a0d0e21e LW |
1297 | =item Illegal division by zero |
1298 | ||
1299 | (F) You tried to divide a number by 0. Either something was wrong in your | |
1300 | logic, or you need to put a conditional in to guard against meaningless input. | |
1301 | ||
1302 | =item Illegal modulus zero | |
1303 | ||
1304 | (F) You tried to divide a number by 0 to get the remainder. Most numbers | |
1305 | don't take to this kindly. | |
1306 | ||
1307 | =item Illegal octal digit | |
1308 | ||
1309 | (F) You used an 8 or 9 in a octal number. | |
1310 | ||
748a9306 LW |
1311 | =item Illegal octal digit ignored |
1312 | ||
1313 | (W) You may have tried to use an 8 or 9 in a octal number. Interpretation | |
1314 | of the octal number stopped before the 8 or 9. | |
1315 | ||
6ff81951 GS |
1316 | =item Illegal hex digit ignored |
1317 | ||
1318 | (W) You may have tried to use a character other than 0 - 9 or A - F in a | |
1319 | hexadecimal number. Interpretation of the hexadecimal number stopped | |
1320 | before the illegal character. | |
1321 | ||
54310121 | 1322 | =item Illegal switch in PERL5OPT: %s |
1323 | ||
1324 | (X) The PERL5OPT environment variable may only be used to set the | |
1325 | following switches: B<-[DIMUdmw]>. | |
1326 | ||
9607fc9c | 1327 | =item In string, @%s now must be written as \@%s |
1328 | ||
1329 | (F) It used to be that Perl would try to guess whether you wanted an | |
1330 | array interpolated or a literal @. It did this when the string was first | |
1331 | used at runtime. Now strings are parsed at compile time, and ambiguous | |
1332 | instances of @ must be disambiguated, either by prepending a backslash to | |
1333 | indicate a literal, or by declaring (or using) the array within the | |
1334 | program before the string (lexically). (Someday it will simply assume | |
1335 | that an unbackslashed @ interpolates an array.) | |
1336 | ||
a0d0e21e LW |
1337 | =item Insecure dependency in %s |
1338 | ||
8b1a09fc | 1339 | (F) You tried to do something that the tainting mechanism didn't like. |
a0d0e21e LW |
1340 | The tainting mechanism is turned on when you're running setuid or setgid, |
1341 | or when you specify B<-T> to turn it on explicitly. The tainting mechanism | |
1342 | labels all data that's derived directly or indirectly from the user, | |
1343 | who is considered to be unworthy of your trust. If any such data is | |
1344 | used in a "dangerous" operation, you get this error. See L<perlsec> | |
1345 | for more information. | |
1346 | ||
1347 | =item Insecure directory in %s | |
1348 | ||
1349 | (F) You can't use system(), exec(), or a piped open in a setuid or setgid | |
8b1a09fc | 1350 | script if C<$ENV{PATH}> contains a directory that is writable by the world. |
a0d0e21e LW |
1351 | See L<perlsec>. |
1352 | ||
62f468fc | 1353 | =item Insecure $ENV{%s} while running %s |
a0d0e21e LW |
1354 | |
1355 | (F) You can't use system(), exec(), or a piped open in a setuid or | |
62f468fc MG |
1356 | setgid script if any of C<$ENV{PATH}>, C<$ENV{IFS}>, C<$ENV{CDPATH}>, |
1357 | C<$ENV{ENV}> or C<$ENV{BASH_ENV}> are derived from data supplied (or | |
a0d0e21e LW |
1358 | potentially supplied) by the user. The script must set the path to a |
1359 | known value, using trustworthy data. See L<perlsec>. | |
1360 | ||
bbce6d69 | 1361 | =item Integer overflow in hex number |
1362 | ||
1363 | (S) The literal hex number you have specified is too big for your | |
1364 | architecture. On a 32-bit architecture the largest hex literal is | |
1365 | 0xFFFFFFFF. | |
1366 | ||
1367 | =item Integer overflow in octal number | |
1368 | ||
1369 | (S) The literal octal number you have specified is too big for your | |
1370 | architecture. On a 32-bit architecture the largest octal literal is | |
1371 | 037777777777. | |
1372 | ||
748a9306 LW |
1373 | =item Internal inconsistency in tracking vforks |
1374 | ||
1375 | (S) A warning peculiar to VMS. Perl keeps track of the number | |
5f05dabc | 1376 | of times you've called C<fork> and C<exec>, to determine |
2ba9eb46 | 1377 | whether the current call to C<exec> should affect the current |
748a9306 LW |
1378 | script or a subprocess (see L<perlvms/exec>). Somehow, this count |
1379 | has become scrambled, so Perl is making a guess and treating | |
1380 | this C<exec> as a request to terminate the Perl script | |
1381 | and execute the specified command. | |
1382 | ||
a0d0e21e LW |
1383 | =item internal disaster in regexp |
1384 | ||
1385 | (P) Something went badly wrong in the regular expression parser. | |
1386 | ||
5cd24f17 | 1387 | =item internal error: glob failed |
1388 | ||
1389 | (P) Something went wrong with the external program(s) used for C<glob> | |
1390 | and C<E<lt>*.cE<gt>>. This may mean that your csh (C shell) is | |
1391 | broken. If so, you should change all of the csh-related variables in | |
1392 | config.sh: If you have tcsh, make the variables refer to it as if it | |
1393 | were csh (e.g. C<full_csh='/usr/bin/tcsh'>); otherwise, make them all | |
1394 | empty (except that C<d_csh> should be C<'undef'>) so that Perl will | |
1395 | think csh is missing. In either case, after editing config.sh, run | |
1396 | C<./Configure -S> and rebuild Perl. | |
1397 | ||
a0d0e21e LW |
1398 | =item internal urp in regexp at /%s/ |
1399 | ||
1400 | (P) Something went badly awry in the regular expression parser. | |
1401 | ||
1402 | =item invalid [] range in regexp | |
1403 | ||
1404 | (F) The range specified in a character class had a minimum character | |
1405 | greater than the maximum character. See L<perlre>. | |
1406 | ||
c635e13b | 1407 | =item Invalid conversion in %s: "%s" |
1408 | ||
878e08df | 1409 | (W) Perl does not understand the given format conversion. |
c635e13b | 1410 | See L<perlfunc/sprintf>. |
1411 | ||
96e4d5b1 | 1412 | =item Invalid type in pack: '%s' |
1413 | ||
8903cb82 | 1414 | (F) The given character is not a valid pack type. See L<perlfunc/pack>. |
fb73857a | 1415 | (W) The given character is not a valid pack type but used to be silently |
1416 | ignored. | |
96e4d5b1 | 1417 | |
1418 | =item Invalid type in unpack: '%s' | |
1419 | ||
8903cb82 | 1420 | (F) The given character is not a valid unpack type. See L<perlfunc/unpack>. |
fb73857a | 1421 | (W) The given character is not a valid unpack type but used to be silently |
1422 | ignored. | |
96e4d5b1 | 1423 | |
a0d0e21e LW |
1424 | =item ioctl is not implemented |
1425 | ||
1426 | (F) Your machine apparently doesn't implement ioctl(), which is pretty | |
1427 | strange for a machine that supports C. | |
1428 | ||
1429 | =item junk on end of regexp | |
1430 | ||
1431 | (P) The regular expression parser is confused. | |
1432 | ||
1433 | =item Label not found for "last %s" | |
1434 | ||
1435 | (F) You named a loop to break out of, but you're not currently in a | |
1436 | loop of that name, not even if you count where you were called from. | |
1437 | See L<perlfunc/last>. | |
1438 | ||
1439 | =item Label not found for "next %s" | |
1440 | ||
1441 | (F) You named a loop to continue, but you're not currently in a loop of | |
1442 | that name, not even if you count where you were called from. See | |
1443 | L<perlfunc/last>. | |
1444 | ||
1445 | =item Label not found for "redo %s" | |
1446 | ||
1447 | (F) You named a loop to restart, but you're not currently in a loop of | |
1448 | that name, not even if you count where you were called from. See | |
1449 | L<perlfunc/last>. | |
1450 | ||
1451 | =item listen() on closed fd | |
1452 | ||
1453 | (W) You tried to do a listen on a closed socket. Did you forget to check | |
1454 | the return value of your socket() call? See L<perlfunc/listen>. | |
1455 | ||
a0d0e21e LW |
1456 | =item Method for operation %s not found in package %s during blessing |
1457 | ||
1458 | (F) An attempt was made to specify an entry in an overloading table that | |
e7ea3e70 | 1459 | doesn't resolve to a valid subroutine. See L<overload>. |
a0d0e21e LW |
1460 | |
1461 | =item Might be a runaway multi-line %s string starting on line %d | |
1462 | ||
1463 | (S) An advisory indicating that the previous error may have been caused | |
1464 | by a missing delimiter on a string or pattern, because it eventually | |
1465 | ended earlier on the current line. | |
1466 | ||
1467 | =item Misplaced _ in number | |
1468 | ||
1469 | (W) An underline in a decimal constant wasn't on a 3-digit boundary. | |
1470 | ||
1471 | =item Missing $ on loop variable | |
1472 | ||
8b1a09fc | 1473 | (F) Apparently you've been programming in B<csh> too much. Variables are always |
1474 | mentioned with the $ in Perl, unlike in the shells, where it can vary from | |
a0d0e21e LW |
1475 | one line to the next. |
1476 | ||
1477 | =item Missing comma after first argument to %s function | |
1478 | ||
1479 | (F) While certain functions allow you to specify a filehandle or an | |
1480 | "indirect object" before the argument list, this ain't one of them. | |
1481 | ||
748a9306 LW |
1482 | =item Missing operator before %s? |
1483 | ||
1484 | (S) This is an educated guess made in conjunction with the message "%s | |
1485 | found where operator expected". Often the missing operator is a comma. | |
1486 | ||
a0d0e21e LW |
1487 | =item Missing right bracket |
1488 | ||
1489 | (F) The lexer counted more opening curly brackets (braces) than closing ones. | |
1490 | As a general rule, you'll find it's missing near the place you were last | |
1491 | editing. | |
1492 | ||
a0d0e21e LW |
1493 | =item Modification of a read-only value attempted |
1494 | ||
1495 | (F) You tried, directly or indirectly, to change the value of a | |
5f05dabc | 1496 | constant. You didn't, of course, try "2 = 1", because the compiler |
a0d0e21e LW |
1497 | catches that. But an easy way to do the same thing is: |
1498 | ||
1499 | sub mod { $_[0] = 1 } | |
1500 | mod(2); | |
1501 | ||
1502 | Another way is to assign to a substr() that's off the end of the string. | |
1503 | ||
54310121 | 1504 | =item Modification of noncreatable array value attempted, subscript %d |
a0d0e21e LW |
1505 | |
1506 | (F) You tried to make an array value spring into existence, and the | |
1507 | subscript was probably negative, even counting from end of the array | |
1508 | backwards. | |
1509 | ||
54310121 | 1510 | =item Modification of noncreatable hash value attempted, subscript "%s" |
a0d0e21e LW |
1511 | |
1512 | (F) You tried to make a hash value spring into existence, and it couldn't | |
1513 | be created for some peculiar reason. | |
1514 | ||
1515 | =item Module name must be constant | |
1516 | ||
1517 | (F) Only a bare module name is allowed as the first argument to a "use". | |
1518 | ||
1519 | =item msg%s not implemented | |
1520 | ||
1521 | (F) You don't have System V message IPC on your system. | |
1522 | ||
1523 | =item Multidimensional syntax %s not supported | |
1524 | ||
8b1a09fc | 1525 | (W) Multidimensional arrays aren't written like C<$foo[1,2,3]>. They're written |
1526 | like C<$foo[1][2][3]>, as in C. | |
1527 | ||
1528 | =item Name "%s::%s" used only once: possible typo | |
1529 | ||
68dc0745 | 1530 | (W) Typographical errors often show up as unique variable names. |
1531 | If you had a good reason for having a unique name, then just mention | |
1532 | it again somehow to suppress the message. The C<use vars> pragma is | |
1533 | provided for just this purpose. | |
a0d0e21e LW |
1534 | |
1535 | =item Negative length | |
1536 | ||
1537 | (F) You tried to do a read/write/send/recv operation with a buffer length | |
1538 | that is less than 0. This is difficult to imagine. | |
1539 | ||
1540 | =item nested *?+ in regexp | |
1541 | ||
5f05dabc | 1542 | (F) You can't quantify a quantifier without intervening parentheses. So |
a0d0e21e LW |
1543 | things like ** or +* or ?* are illegal. |
1544 | ||
5f05dabc | 1545 | Note, however, that the minimal matching quantifiers, C<*?>, C<+?>, and C<??> appear |
a0d0e21e LW |
1546 | to be nested quantifiers, but aren't. See L<perlre>. |
1547 | ||
1548 | =item No #! line | |
1549 | ||
1550 | (F) The setuid emulator requires that scripts have a well-formed #! line | |
1551 | even on machines that don't support the #! construct. | |
1552 | ||
1553 | =item No %s allowed while running setuid | |
1554 | ||
1555 | (F) Certain operations are deemed to be too insecure for a setuid or setgid | |
1556 | script to even be allowed to attempt. Generally speaking there will be | |
1557 | another way to do what you want that is, if not secure, at least securable. | |
1558 | See L<perlsec>. | |
1559 | ||
1560 | =item No B<-e> allowed in setuid scripts | |
1561 | ||
1562 | (F) A setuid script can't be specified by the user. | |
1563 | ||
1564 | =item No comma allowed after %s | |
1565 | ||
1566 | (F) A list operator that has a filehandle or "indirect object" is not | |
1567 | allowed to have a comma between that and the following arguments. | |
1568 | Otherwise it'd be just another one of the arguments. | |
1569 | ||
0a753a76 | 1570 | One possible cause for this is that you expected to have imported a |
1571 | constant to your name space with B<use> or B<import> while no such | |
1572 | importing took place, it may for example be that your operating system | |
1573 | does not support that particular constant. Hopefully you did use an | |
1574 | explicit import list for the constants you expect to see, please see | |
1575 | L<perlfunc/use> and L<perlfunc/import>. While an explicit import list | |
1576 | would probably have caught this error earlier it naturally does not | |
1577 | remedy the fact that your operating system still does not support that | |
1578 | constant. Maybe you have a typo in the constants of the symbol import | |
1579 | list of B<use> or B<import> or in the constant name at the line where | |
1580 | this error was triggered? | |
1581 | ||
748a9306 LW |
1582 | =item No command into which to pipe on command line |
1583 | ||
1584 | (F) An error peculiar to VMS. Perl handles its own command line redirection, | |
54310121 | 1585 | and found a '|' at the end of the command line, so it doesn't know where you |
748a9306 LW |
1586 | want to pipe the output from this command. |
1587 | ||
a0d0e21e LW |
1588 | =item No DB::DB routine defined |
1589 | ||
1590 | (F) The currently executing code was compiled with the B<-d> switch, | |
1591 | but for some reason the perl5db.pl file (or some facsimile thereof) | |
1592 | didn't define a routine to be called at the beginning of each | |
1593 | statement. Which is odd, because the file should have been required | |
1594 | automatically, and should have blown up the require if it didn't parse | |
1595 | right. | |
1596 | ||
1597 | =item No dbm on this machine | |
1598 | ||
1599 | (P) This is counted as an internal error, because every machine should | |
5f05dabc | 1600 | supply dbm nowadays, because Perl comes with SDBM. See L<SDBM_File>. |
a0d0e21e LW |
1601 | |
1602 | =item No DBsub routine | |
1603 | ||
1604 | (F) The currently executing code was compiled with the B<-d> switch, | |
1605 | but for some reason the perl5db.pl file (or some facsimile thereof) | |
1606 | didn't define a DB::sub routine to be called at the beginning of each | |
1607 | ordinary subroutine call. | |
1608 | ||
8b1a09fc | 1609 | =item No error file after 2E<gt> or 2E<gt>E<gt> on command line |
748a9306 LW |
1610 | |
1611 | (F) An error peculiar to VMS. Perl handles its own command line redirection, | |
8b1a09fc | 1612 | and found a '2E<gt>' or a '2E<gt>E<gt>' on the command line, but can't find |
1613 | the name of the file to which to write data destined for stderr. | |
748a9306 | 1614 | |
8b1a09fc | 1615 | =item No input file after E<lt> on command line |
748a9306 LW |
1616 | |
1617 | (F) An error peculiar to VMS. Perl handles its own command line redirection, | |
8b1a09fc | 1618 | and found a 'E<lt>' on the command line, but can't find the name of the file |
1619 | from which to read data for stdin. | |
748a9306 | 1620 | |
8b1a09fc | 1621 | =item No output file after E<gt> on command line |
748a9306 LW |
1622 | |
1623 | (F) An error peculiar to VMS. Perl handles its own command line redirection, | |
8b1a09fc | 1624 | and found a lone 'E<gt>' at the end of the command line, so it doesn't know |
54310121 | 1625 | where you wanted to redirect stdout. |
748a9306 | 1626 | |
8b1a09fc | 1627 | =item No output file after E<gt> or E<gt>E<gt> on command line |
748a9306 LW |
1628 | |
1629 | (F) An error peculiar to VMS. Perl handles its own command line redirection, | |
8b1a09fc | 1630 | and found a 'E<gt>' or a 'E<gt>E<gt>' on the command line, but can't find the |
1631 | name of the file to which to write data destined for stdout. | |
748a9306 | 1632 | |
a0d0e21e LW |
1633 | =item No Perl script found in input |
1634 | ||
1635 | (F) You called C<perl -x>, but no line was found in the file beginning | |
1636 | with #! and containing the word "perl". | |
1637 | ||
1638 | =item No setregid available | |
1639 | ||
1640 | (F) Configure didn't find anything resembling the setregid() call for | |
1641 | your system. | |
1642 | ||
1643 | =item No setreuid available | |
1644 | ||
1645 | (F) Configure didn't find anything resembling the setreuid() call for | |
1646 | your system. | |
1647 | ||
1648 | =item No space allowed after B<-I> | |
1649 | ||
1650 | (F) The argument to B<-I> must follow the B<-I> immediately with no | |
1651 | intervening space. | |
1652 | ||
57079c46 GA |
1653 | =item No such array field |
1654 | ||
1655 | (F) You tried to access an array as a hash, but the field name used is | |
1656 | not defined. The hash at index 0 should map all valid field names to | |
1657 | array indices for that to work. | |
1658 | ||
f1192cee GA |
1659 | =item No such field "%s" in variable %s of type %s |
1660 | ||
1661 | (F) You tried to access a field of a typed variable where the type | |
1662 | does not know about the field name. The field names are looked up in | |
1663 | the %FIELDS hash in the type package at compile time. The %FIELDS hash | |
1664 | is usually set up with the 'fields' pragma. | |
1665 | ||
748a9306 LW |
1666 | =item No such pipe open |
1667 | ||
1668 | (P) An error peculiar to VMS. The internal routine my_pclose() tried to | |
1669 | close a pipe which hadn't been opened. This should have been caught earlier as | |
1670 | an attempt to close an unopened filehandle. | |
1671 | ||
a0d0e21e LW |
1672 | =item No such signal: SIG%s |
1673 | ||
1674 | (W) You specified a signal name as a subscript to %SIG that was not recognized. | |
1675 | Say C<kill -l> in your shell to see the valid signal names on your system. | |
1676 | ||
1677 | =item Not a CODE reference | |
1678 | ||
1679 | (F) Perl was trying to evaluate a reference to a code value (that is, a | |
1680 | subroutine), but found a reference to something else instead. You can | |
1681 | use the ref() function to find out what kind of ref it really was. | |
1682 | See also L<perlref>. | |
1683 | ||
1684 | =item Not a format reference | |
1685 | ||
1686 | (F) I'm not sure how you managed to generate a reference to an anonymous | |
1687 | format, but this indicates you did, and that it didn't exist. | |
1688 | ||
1689 | =item Not a GLOB reference | |
1690 | ||
55497cff | 1691 | (F) Perl was trying to evaluate a reference to a "typeglob" (that is, |
a0d0e21e LW |
1692 | a symbol table entry that looks like C<*foo>), but found a reference to |
1693 | something else instead. You can use the ref() function to find out | |
1694 | what kind of ref it really was. See L<perlref>. | |
1695 | ||
1696 | =item Not a HASH reference | |
1697 | ||
1698 | (F) Perl was trying to evaluate a reference to a hash value, but | |
1699 | found a reference to something else instead. You can use the ref() | |
1700 | function to find out what kind of ref it really was. See L<perlref>. | |
1701 | ||
1702 | =item Not a perl script | |
1703 | ||
1704 | (F) The setuid emulator requires that scripts have a well-formed #! line | |
1705 | even on machines that don't support the #! construct. The line must | |
1706 | mention perl. | |
1707 | ||
1708 | =item Not a SCALAR reference | |
1709 | ||
1710 | (F) Perl was trying to evaluate a reference to a scalar value, but | |
1711 | found a reference to something else instead. You can use the ref() | |
1712 | function to find out what kind of ref it really was. See L<perlref>. | |
1713 | ||
1714 | =item Not a subroutine reference | |
1715 | ||
1716 | (F) Perl was trying to evaluate a reference to a code value (that is, a | |
1717 | subroutine), but found a reference to something else instead. You can | |
1718 | use the ref() function to find out what kind of ref it really was. | |
1719 | See also L<perlref>. | |
1720 | ||
e7ea3e70 | 1721 | =item Not a subroutine reference in overload table |
a0d0e21e LW |
1722 | |
1723 | (F) An attempt was made to specify an entry in an overloading table that | |
8b1a09fc | 1724 | doesn't somehow point to a valid subroutine. See L<overload>. |
a0d0e21e LW |
1725 | |
1726 | =item Not an ARRAY reference | |
1727 | ||
1728 | (F) Perl was trying to evaluate a reference to an array value, but | |
1729 | found a reference to something else instead. You can use the ref() | |
1730 | function to find out what kind of ref it really was. See L<perlref>. | |
1731 | ||
1732 | =item Not enough arguments for %s | |
1733 | ||
1734 | (F) The function requires more arguments than you specified. | |
1735 | ||
1736 | =item Not enough format arguments | |
1737 | ||
1738 | (W) A format specified more picture fields than the next line supplied. | |
1739 | See L<perlform>. | |
1740 | ||
1741 | =item Null filename used | |
1742 | ||
5f05dabc | 1743 | (F) You can't require the null filename, especially because on many machines |
a0d0e21e LW |
1744 | that means the current directory! See L<perlfunc/require>. |
1745 | ||
55497cff | 1746 | =item Null picture in formline |
1747 | ||
1748 | (F) The first argument to formline must be a valid format picture | |
1749 | specification. It was found to be empty, which probably means you | |
1750 | supplied it an uninitialized value. See L<perlform>. | |
1751 | ||
a0d0e21e LW |
1752 | =item NULL OP IN RUN |
1753 | ||
1754 | (P) Some internal routine called run() with a null opcode pointer. | |
1755 | ||
1756 | =item Null realloc | |
1757 | ||
1758 | (P) An attempt was made to realloc NULL. | |
1759 | ||
1760 | =item NULL regexp argument | |
1761 | ||
5f05dabc | 1762 | (P) The internal pattern matching routines blew it big time. |
a0d0e21e LW |
1763 | |
1764 | =item NULL regexp parameter | |
1765 | ||
1766 | (P) The internal pattern matching routines are out of their gourd. | |
1767 | ||
fc36a67e | 1768 | =item Number too long |
1769 | ||
1770 | (F) Perl limits the representation of decimal numbers in programs to about | |
1771 | about 250 characters. You've exceeded that length. Future versions of | |
1772 | Perl are likely to eliminate this arbitrary limitation. In the meantime, | |
1773 | try using scientific notation (e.g. "1e6" instead of "1_000_000"). | |
1774 | ||
1930e939 | 1775 | =item Odd number of elements in hash assignment |
a0d0e21e | 1776 | |
1930e939 TP |
1777 | (S) You specified an odd number of elements to initialize a hash, which |
1778 | is odd, because hashes come in key/value pairs. | |
a0d0e21e | 1779 | |
bbce6d69 | 1780 | =item Offset outside string |
1781 | ||
1782 | (F) You tried to do a read/write/send/recv operation with an offset | |
1783 | pointing outside the buffer. This is difficult to imagine. | |
1784 | The sole exception to this is that C<sysread()>ing past the buffer | |
1785 | will extend the buffer and zero pad the new area. | |
1786 | ||
a0d0e21e LW |
1787 | =item oops: oopsAV |
1788 | ||
1789 | (S) An internal warning that the grammar is screwed up. | |
1790 | ||
1791 | =item oops: oopsHV | |
1792 | ||
1793 | (S) An internal warning that the grammar is screwed up. | |
1794 | ||
56f7f34b | 1795 | =item Operation `%s': no method found, %s |
44a8e56a | 1796 | |
e7ea3e70 IZ |
1797 | (F) An attempt was made to perform an overloaded operation for which |
1798 | no handler was defined. While some handlers can be autogenerated in | |
1799 | terms of other handlers, there is no default handler for any | |
1800 | operation, unless C<fallback> overloading key is specified to be | |
1801 | true. See L<overload>. | |
44a8e56a | 1802 | |
748a9306 LW |
1803 | =item Operator or semicolon missing before %s |
1804 | ||
1805 | (S) You used a variable or subroutine call where the parser was | |
1806 | expecting an operator. The parser has assumed you really meant | |
1807 | to use an operator, but this is highly likely to be incorrect. | |
1808 | For example, if you say "*foo *foo" it will be interpreted as | |
1809 | if you said "*foo * 'foo'". | |
1810 | ||
a0d0e21e LW |
1811 | =item Out of memory for yacc stack |
1812 | ||
1813 | (F) The yacc parser wanted to grow its stack so it could continue parsing, | |
1814 | but realloc() wouldn't give it more memory, virtual or otherwise. | |
1815 | ||
1b979e0a | 1816 | =item Out of memory during request for %s |
a0d0e21e | 1817 | |
55497cff | 1818 | (X|F) The malloc() function returned 0, indicating there was insufficient |
54310121 | 1819 | remaining memory (or virtual memory) to satisfy the request. |
eff9c6e2 CS |
1820 | |
1821 | The request was judged to be small, so the possibility to trap it | |
1822 | depends on the way perl was compiled. By default it is not trappable. | |
1823 | However, if compiled for this, Perl may use the contents of C<$^M> as | |
1824 | an emergency pool after die()ing with this message. In this case the | |
55497cff | 1825 | error is trappable I<once>. |
1826 | ||
1b979e0a | 1827 | =item Out of memory during "large" request for %s |
55497cff | 1828 | |
1829 | (F) The malloc() function returned 0, indicating there was insufficient | |
1830 | remaining memory (or virtual memory) to satisfy the request. However, | |
1831 | the request was judged large enough (compile-time default is 64K), so | |
1832 | a possibility to shut down by trapping this error is granted. | |
1833 | ||
1b979e0a IZ |
1834 | =item Out of memory during ridiculously large request |
1835 | ||
1836 | (F) You can't allocate more than 2^31+"small amount" bytes. This error | |
1837 | is most likely to be caused by a typo in the Perl program. e.g., C<$arr[time]> | |
1838 | instead of C<$arr[$time]>. | |
1839 | ||
a0d0e21e LW |
1840 | =item page overflow |
1841 | ||
1842 | (W) A single call to write() produced more lines than can fit on a page. | |
1843 | See L<perlform>. | |
1844 | ||
1845 | =item panic: ck_grep | |
1846 | ||
1847 | (P) Failed an internal consistency check trying to compile a grep. | |
1848 | ||
1849 | =item panic: ck_split | |
1850 | ||
1851 | (P) Failed an internal consistency check trying to compile a split. | |
1852 | ||
1853 | =item panic: corrupt saved stack index | |
1854 | ||
1855 | (P) The savestack was requested to restore more localized values than there | |
1856 | are in the savestack. | |
1857 | ||
1858 | =item panic: die %s | |
1859 | ||
1860 | (P) We popped the context stack to an eval context, and then discovered | |
1861 | it wasn't an eval context. | |
1862 | ||
1863 | =item panic: do_match | |
1864 | ||
1865 | (P) The internal pp_match() routine was called with invalid operational data. | |
1866 | ||
1867 | =item panic: do_split | |
1868 | ||
1869 | (P) Something terrible went wrong in setting up for the split. | |
1870 | ||
1871 | =item panic: do_subst | |
1872 | ||
1873 | (P) The internal pp_subst() routine was called with invalid operational data. | |
1874 | ||
1875 | =item panic: do_trans | |
1876 | ||
1877 | (P) The internal do_trans() routine was called with invalid operational data. | |
1878 | ||
c635e13b | 1879 | =item panic: frexp |
1880 | ||
1881 | (P) The library function frexp() failed, making printf("%f") impossible. | |
1882 | ||
a0d0e21e LW |
1883 | =item panic: goto |
1884 | ||
1885 | (P) We popped the context stack to a context with the specified label, | |
1886 | and then discovered it wasn't a context we know how to do a goto in. | |
1887 | ||
1888 | =item panic: INTERPCASEMOD | |
1889 | ||
1890 | (P) The lexer got into a bad state at a case modifier. | |
1891 | ||
1892 | =item panic: INTERPCONCAT | |
1893 | ||
1894 | (P) The lexer got into a bad state parsing a string with brackets. | |
1895 | ||
1896 | =item panic: last | |
1897 | ||
1898 | (P) We popped the context stack to a block context, and then discovered | |
1899 | it wasn't a block context. | |
1900 | ||
1901 | =item panic: leave_scope clearsv | |
1902 | ||
5f05dabc | 1903 | (P) A writable lexical variable became read-only somehow within the scope. |
a0d0e21e LW |
1904 | |
1905 | =item panic: leave_scope inconsistency | |
1906 | ||
1907 | (P) The savestack probably got out of sync. At least, there was an | |
1908 | invalid enum on the top of it. | |
1909 | ||
1910 | =item panic: malloc | |
1911 | ||
1912 | (P) Something requested a negative number of bytes of malloc. | |
1913 | ||
1914 | =item panic: mapstart | |
1915 | ||
1916 | (P) The compiler is screwed up with respect to the map() function. | |
1917 | ||
1918 | =item panic: null array | |
1919 | ||
1920 | (P) One of the internal array routines was passed a null AV pointer. | |
1921 | ||
1922 | =item panic: pad_alloc | |
1923 | ||
1924 | (P) The compiler got confused about which scratch pad it was allocating | |
1925 | and freeing temporaries and lexicals from. | |
1926 | ||
1927 | =item panic: pad_free curpad | |
1928 | ||
1929 | (P) The compiler got confused about which scratch pad it was allocating | |
1930 | and freeing temporaries and lexicals from. | |
1931 | ||
1932 | =item panic: pad_free po | |
1933 | ||
1934 | (P) An invalid scratch pad offset was detected internally. | |
1935 | ||
1936 | =item panic: pad_reset curpad | |
1937 | ||
1938 | (P) The compiler got confused about which scratch pad it was allocating | |
1939 | and freeing temporaries and lexicals from. | |
1940 | ||
1941 | =item panic: pad_sv po | |
1942 | ||
1943 | (P) An invalid scratch pad offset was detected internally. | |
1944 | ||
1945 | =item panic: pad_swipe curpad | |
1946 | ||
1947 | (P) The compiler got confused about which scratch pad it was allocating | |
1948 | and freeing temporaries and lexicals from. | |
1949 | ||
1950 | =item panic: pad_swipe po | |
1951 | ||
1952 | (P) An invalid scratch pad offset was detected internally. | |
1953 | ||
1954 | =item panic: pp_iter | |
1955 | ||
1956 | (P) The foreach iterator got called in a non-loop context frame. | |
1957 | ||
1958 | =item panic: realloc | |
1959 | ||
1960 | (P) Something requested a negative number of bytes of realloc. | |
1961 | ||
1962 | =item panic: restartop | |
1963 | ||
1964 | (P) Some internal routine requested a goto (or something like it), and | |
1965 | didn't supply the destination. | |
1966 | ||
1967 | =item panic: return | |
1968 | ||
1969 | (P) We popped the context stack to a subroutine or eval context, and | |
1970 | then discovered it wasn't a subroutine or eval context. | |
1971 | ||
1972 | =item panic: scan_num | |
1973 | ||
1974 | (P) scan_num() got called on something that wasn't a number. | |
1975 | ||
1976 | =item panic: sv_insert | |
1977 | ||
1978 | (P) The sv_insert() routine was told to remove more string than there | |
1979 | was string. | |
1980 | ||
1981 | =item panic: top_env | |
1982 | ||
6224f72b | 1983 | (P) The compiler attempted to do a goto, or something weird like that. |
a0d0e21e LW |
1984 | |
1985 | =item panic: yylex | |
1986 | ||
1987 | (P) The lexer got into a bad state while processing a case modifier. | |
1988 | ||
7b8d334a | 1989 | =item Parentheses missing around "%s" list |
a0d0e21e LW |
1990 | |
1991 | (W) You said something like | |
1992 | ||
1993 | my $foo, $bar = @_; | |
1994 | ||
1995 | when you meant | |
1996 | ||
1997 | my ($foo, $bar) = @_; | |
1998 | ||
1999 | Remember that "my" and "local" bind closer than comma. | |
2000 | ||
2001 | =item Perl %3.3f required--this is only version %s, stopped | |
2002 | ||
2003 | (F) The module in question uses features of a version of Perl more recent | |
2004 | than the currently running version. How long has it been since you upgraded, | |
2005 | anyway? See L<perlfunc/require>. | |
2006 | ||
2007 | =item Permission denied | |
2008 | ||
2009 | (F) The setuid emulator in suidperl decided you were up to no good. | |
2010 | ||
748a9306 LW |
2011 | =item pid %d not a child |
2012 | ||
2013 | (W) A warning peculiar to VMS. Waitpid() was asked to wait for a process which | |
2014 | isn't a subprocess of the current process. While this is fine from VMS' | |
2015 | perspective, it's probably not what you intended. | |
2016 | ||
a0d0e21e LW |
2017 | =item POSIX getpgrp can't take an argument |
2018 | ||
2019 | (F) Your C compiler uses POSIX getpgrp(), which takes no argument, unlike | |
2020 | the BSD version, which takes a pid. | |
2021 | ||
bbce6d69 | 2022 | =item Possible attempt to put comments in qw() list |
2023 | ||
774d564b | 2024 | (W) qw() lists contain items separated by whitespace; as with literal |
2025 | strings, comment characters are not ignored, but are instead treated | |
2026 | as literal data. (You may have used different delimiters than the | |
7b8d334a | 2027 | parentheses shown here; braces are also frequently used.) |
bbce6d69 | 2028 | |
774d564b | 2029 | You probably wrote something like this: |
2030 | ||
54310121 | 2031 | @list = qw( |
774d564b | 2032 | a # a comment |
bbce6d69 | 2033 | b # another comment |
774d564b | 2034 | ); |
bbce6d69 | 2035 | |
2036 | when you should have written this: | |
2037 | ||
774d564b | 2038 | @list = qw( |
54310121 | 2039 | a |
2040 | b | |
774d564b | 2041 | ); |
2042 | ||
2043 | If you really want comments, build your list the | |
2044 | old-fashioned way, with quotes and commas: | |
2045 | ||
2046 | @list = ( | |
2047 | 'a', # a comment | |
2048 | 'b', # another comment | |
2049 | ); | |
bbce6d69 | 2050 | |
2051 | =item Possible attempt to separate words with commas | |
2052 | ||
774d564b | 2053 | (W) qw() lists contain items separated by whitespace; therefore commas |
68dc0745 | 2054 | aren't needed to separate the items. (You may have used different |
774d564b | 2055 | delimiters than the parentheses shown here; braces are also frequently |
2056 | used.) | |
bbce6d69 | 2057 | |
54310121 | 2058 | You probably wrote something like this: |
bbce6d69 | 2059 | |
774d564b | 2060 | qw! a, b, c !; |
2061 | ||
2062 | which puts literal commas into some of the list items. Write it without | |
2063 | commas if you don't want them to appear in your data: | |
bbce6d69 | 2064 | |
774d564b | 2065 | qw! a b c !; |
bbce6d69 | 2066 | |
a0d0e21e LW |
2067 | =item Possible memory corruption: %s overflowed 3rd argument |
2068 | ||
2069 | (F) An ioctl() or fcntl() returned more than Perl was bargaining for. | |
2070 | Perl guesses a reasonable buffer size, but puts a sentinel byte at the | |
2071 | end of the buffer just in case. This sentinel byte got clobbered, and | |
2072 | Perl assumes that memory is now corrupted. See L<perlfunc/ioctl>. | |
2073 | ||
2074 | =item Precedence problem: open %s should be open(%s) | |
2075 | ||
2076 | (S) The old irregular construct | |
cb1a09d0 | 2077 | |
a0d0e21e LW |
2078 | open FOO || die; |
2079 | ||
2080 | is now misinterpreted as | |
2081 | ||
2082 | open(FOO || die); | |
2083 | ||
68dc0745 | 2084 | because of the strict regularization of Perl 5's grammar into unary |
2085 | and list operators. (The old open was a little of both.) You must | |
2086 | put parentheses around the filehandle, or use the new "or" operator | |
2087 | instead of "||". | |
a0d0e21e LW |
2088 | |
2089 | =item print on closed filehandle %s | |
2090 | ||
2091 | (W) The filehandle you're printing on got itself closed sometime before now. | |
2092 | Check your logic flow. | |
2093 | ||
2094 | =item printf on closed filehandle %s | |
2095 | ||
2096 | (W) The filehandle you're writing to got itself closed sometime before now. | |
2097 | Check your logic flow. | |
2098 | ||
2099 | =item Probable precedence problem on %s | |
2100 | ||
54310121 | 2101 | (W) The compiler found a bareword where it expected a conditional, |
a0d0e21e LW |
2102 | which often indicates that an || or && was parsed as part of the |
2103 | last argument of the previous construct, for example: | |
2104 | ||
2105 | open FOO || die; | |
2106 | ||
3fe9a6f1 | 2107 | =item Prototype mismatch: %s vs %s |
4633a7c4 | 2108 | |
3fe9a6f1 | 2109 | (S) The subroutine being declared or defined had previously been declared |
2110 | or defined with a different function prototype. | |
4633a7c4 | 2111 | |
89ea2908 GA |
2112 | =item Range iterator outside integer range |
2113 | ||
2114 | (F) One (or both) of the numeric arguments to the range operator ".." | |
2115 | are outside the range which can be represented by integers internally. | |
2116 | One possible workaround is to force Perl to use magical string | |
2117 | increment by prepending "0" to your numbers. | |
2118 | ||
8b1a09fc | 2119 | =item Read on closed filehandle E<lt>%sE<gt> |
a0d0e21e LW |
2120 | |
2121 | (W) The filehandle you're reading from got itself closed sometime before now. | |
2122 | Check your logic flow. | |
2123 | ||
2124 | =item Reallocation too large: %lx | |
2125 | ||
54310121 | 2126 | (F) You can't allocate more than 64K on an MS-DOS machine. |
a0d0e21e LW |
2127 | |
2128 | =item Recompile perl with B<-D>DEBUGGING to use B<-D> switch | |
2129 | ||
2130 | (F) You can't use the B<-D> option unless the code to produce the | |
2131 | desired output is compiled into Perl, which entails some overhead, | |
2132 | which is why it's currently left out of your copy. | |
2133 | ||
3e0ccd42 | 2134 | =item Recursive inheritance detected in package '%s' |
a0d0e21e LW |
2135 | |
2136 | (F) More than 100 levels of inheritance were used. Probably indicates | |
2137 | an unintended loop in your inheritance hierarchy. | |
2138 | ||
3e0ccd42 JP |
2139 | =item Recursive inheritance detected while looking for method '%s' in package '%s' |
2140 | ||
2141 | (F) More than 100 levels of inheritance were encountered while invoking a | |
2142 | method. Probably indicates an unintended loop in your inheritance hierarchy. | |
2143 | ||
1930e939 TP |
2144 | =item Reference found where even-sized list expected |
2145 | ||
2146 | (W) You gave a single reference where Perl was expecting a list with | |
2147 | an even number of elements (for assignment to a hash). This | |
2148 | usually means that you used the anon hash constructor when you meant | |
2149 | to use parens. In any case, a hash requires key/value B<pairs>. | |
7b8d334a GS |
2150 | |
2151 | %hash = { one => 1, two => 2, }; # WRONG | |
2152 | %hash = [ qw/ an anon array / ]; # WRONG | |
2153 | %hash = ( one => 1, two => 2, ); # right | |
2154 | %hash = qw( one 1 two 2 ); # also fine | |
2155 | ||
a0d0e21e LW |
2156 | =item Reference miscount in sv_replace() |
2157 | ||
2158 | (W) The internal sv_replace() function was handed a new SV with a | |
2159 | reference count of other than 1. | |
2160 | ||
fb73857a | 2161 | =item regexp *+ operand could be empty |
2162 | ||
2163 | (F) The part of the regexp subject to either the * or + quantifier | |
2164 | could match an empty string. | |
2165 | ||
a0d0e21e LW |
2166 | =item regexp memory corruption |
2167 | ||
2168 | (P) The regular expression engine got confused by what the regular | |
2169 | expression compiler gave it. | |
2170 | ||
2171 | =item regexp out of space | |
2172 | ||
2173 | (P) A "can't happen" error, because safemalloc() should have caught it earlier. | |
2174 | ||
2175 | =item regexp too big | |
2176 | ||
2ba9eb46 | 2177 | (F) The current implementation of regular expressions uses shorts as |
a0d0e21e LW |
2178 | address offsets within a string. Unfortunately this means that if |
2179 | the regular expression compiles to longer than 32767, it'll blow up. | |
2180 | Usually when you want a regular expression this big, there is a better | |
2181 | way to do it with multiple statements. See L<perlre>. | |
2182 | ||
2183 | =item Reversed %s= operator | |
2184 | ||
2185 | (W) You wrote your assignment operator backwards. The = must always | |
2186 | comes last, to avoid ambiguity with subsequent unary operators. | |
2187 | ||
2188 | =item Runaway format | |
2189 | ||
2190 | (F) Your format contained the ~~ repeat-until-blank sequence, but it | |
2191 | produced 200 lines at once, and the 200th line looked exactly like the | |
2192 | 199th line. Apparently you didn't arrange for the arguments to exhaust | |
2193 | themselves, either by using ^ instead of @ (for scalar variables), or by | |
2194 | shifting or popping (for array variables). See L<perlform>. | |
2195 | ||
2196 | =item Scalar value @%s[%s] better written as $%s[%s] | |
2197 | ||
a6006777 | 2198 | (W) You've used an array slice (indicated by @) to select a single element of |
a0d0e21e | 2199 | an array. Generally it's better to ask for a scalar value (indicated by $). |
8b1a09fc | 2200 | The difference is that C<$foo[&bar]> always behaves like a scalar, both when |
2201 | assigning to it and when evaluating its argument, while C<@foo[&bar]> behaves | |
a0d0e21e | 2202 | like a list when you assign to it, and provides a list context to its |
5f05dabc | 2203 | subscript, which can do weird things if you're expecting only one subscript. |
a0d0e21e | 2204 | |
748a9306 | 2205 | On the other hand, if you were actually hoping to treat the array |
5f05dabc | 2206 | element as a list, you need to look into how references work, because |
748a9306 LW |
2207 | Perl will not magically convert between scalars and lists for you. See |
2208 | L<perlref>. | |
2209 | ||
a6006777 | 2210 | =item Scalar value @%s{%s} better written as $%s{%s} |
2211 | ||
2212 | (W) You've used a hash slice (indicated by @) to select a single element of | |
2213 | a hash. Generally it's better to ask for a scalar value (indicated by $). | |
2214 | The difference is that C<$foo{&bar}> always behaves like a scalar, both when | |
2215 | assigning to it and when evaluating its argument, while C<@foo{&bar}> behaves | |
2216 | like a list when you assign to it, and provides a list context to its | |
2217 | subscript, which can do weird things if you're expecting only one subscript. | |
2218 | ||
2219 | On the other hand, if you were actually hoping to treat the hash | |
2220 | element as a list, you need to look into how references work, because | |
2221 | Perl will not magically convert between scalars and lists for you. See | |
2222 | L<perlref>. | |
2223 | ||
a0d0e21e LW |
2224 | =item Script is not setuid/setgid in suidperl |
2225 | ||
54310121 | 2226 | (F) Oddly, the suidperl program was invoked on a script without a setuid |
2227 | or setgid bit set. This doesn't make much sense. | |
a0d0e21e LW |
2228 | |
2229 | =item Search pattern not terminated | |
2230 | ||
2231 | (F) The lexer couldn't find the final delimiter of a // or m{} | |
2232 | construct. Remember that bracketing delimiters count nesting level. | |
fb73857a | 2233 | Missing the leading C<$> from a variable C<$m> may cause this error. |
a0d0e21e | 2234 | |
96e4d5b1 | 2235 | =item %sseek() on unopened file |
a0d0e21e | 2236 | |
96e4d5b1 | 2237 | (W) You tried to use the seek() or sysseek() function on a filehandle that |
2238 | was either never opened or has since been closed. | |
a0d0e21e LW |
2239 | |
2240 | =item select not implemented | |
2241 | ||
2242 | (F) This machine doesn't implement the select() system call. | |
2243 | ||
2244 | =item sem%s not implemented | |
2245 | ||
2246 | (F) You don't have System V semaphore IPC on your system. | |
2247 | ||
2248 | =item semi-panic: attempt to dup freed string | |
2249 | ||
2250 | (S) The internal newSVsv() routine was called to duplicate a scalar | |
2251 | that had previously been marked as free. | |
2252 | ||
2253 | =item Semicolon seems to be missing | |
2254 | ||
2255 | (W) A nearby syntax error was probably caused by a missing semicolon, | |
2256 | or possibly some other missing operator, such as a comma. | |
2257 | ||
2258 | =item Send on closed socket | |
2259 | ||
2260 | (W) The filehandle you're sending to got itself closed sometime before now. | |
2261 | Check your logic flow. | |
2262 | ||
1b1626e4 | 2263 | =item Sequence (? incomplete |
7b8d334a | 2264 | |
1b1626e4 MG |
2265 | (F) A regular expression ended with an incomplete extension (?. |
2266 | See L<perlre>. | |
2267 | ||
a0d0e21e LW |
2268 | =item Sequence (?#... not terminated |
2269 | ||
2270 | (F) A regular expression comment must be terminated by a closing | |
5f05dabc | 2271 | parenthesis. Embedded parentheses aren't allowed. See L<perlre>. |
a0d0e21e LW |
2272 | |
2273 | =item Sequence (?%s...) not implemented | |
2274 | ||
2275 | (F) A proposed regular expression extension has the character reserved | |
2276 | but has not yet been written. See L<perlre>. | |
2277 | ||
2278 | =item Sequence (?%s...) not recognized | |
2279 | ||
2280 | (F) You used a regular expression extension that doesn't make sense. | |
2281 | See L<perlre>. | |
2282 | ||
a5f75d66 AD |
2283 | =item Server error |
2284 | ||
9607fc9c | 2285 | Also known as "500 Server error". |
2286 | ||
2287 | B<This is a CGI error, not a Perl error>. | |
2288 | ||
2289 | You need to make sure your script is executable, is accessible by the user | |
2290 | CGI is running the script under (which is probably not the user account you | |
2291 | tested it under), does not rely on any environment variables (like PATH) | |
2292 | from the user it isn't running under, and isn't in a location where the CGI | |
2293 | server can't find it, basically, more or less. Please see the following | |
2294 | for more information: | |
2295 | ||
2296 | http://www.perl.com/perl/faq/idiots-guide.html | |
2297 | http://www.perl.com/perl/faq/perl-cgi-faq.html | |
2298 | ftp://rtfm.mit.edu/pub/usenet/news.answers/www/cgi-faq | |
2299 | http://hoohoo.ncsa.uiuc.edu/cgi/interface.html | |
2300 | http://www-genome.wi.mit.edu/WWW/faqs/www-security-faq.html | |
a5f75d66 | 2301 | |
a0d0e21e LW |
2302 | =item setegid() not implemented |
2303 | ||
8b1a09fc | 2304 | (F) You tried to assign to C<$)>, and your operating system doesn't support |
a0d0e21e LW |
2305 | the setegid() system call (or equivalent), or at least Configure didn't |
2306 | think so. | |
2307 | ||
2308 | =item seteuid() not implemented | |
2309 | ||
8b1a09fc | 2310 | (F) You tried to assign to C<$E<gt>>, and your operating system doesn't support |
a0d0e21e LW |
2311 | the seteuid() system call (or equivalent), or at least Configure didn't |
2312 | think so. | |
2313 | ||
2314 | =item setrgid() not implemented | |
2315 | ||
8b1a09fc | 2316 | (F) You tried to assign to C<$(>, and your operating system doesn't support |
a0d0e21e LW |
2317 | the setrgid() system call (or equivalent), or at least Configure didn't |
2318 | think so. | |
2319 | ||
2320 | =item setruid() not implemented | |
2321 | ||
1f8d2005 | 2322 | (F) You tried to assign to C<$E<lt>>, and your operating system doesn't support |
a0d0e21e LW |
2323 | the setruid() system call (or equivalent), or at least Configure didn't |
2324 | think so. | |
2325 | ||
2326 | =item Setuid/gid script is writable by world | |
2327 | ||
2328 | (F) The setuid emulator won't run a script that is writable by the world, | |
2329 | because the world might have written on it already. | |
2330 | ||
2331 | =item shm%s not implemented | |
2332 | ||
2333 | (F) You don't have System V shared memory IPC on your system. | |
2334 | ||
2335 | =item shutdown() on closed fd | |
2336 | ||
2337 | (W) You tried to do a shutdown on a closed socket. Seems a bit superfluous. | |
2338 | ||
f86702cc | 2339 | =item SIG%s handler "%s" not defined |
a0d0e21e LW |
2340 | |
2341 | (W) The signal handler named in %SIG doesn't, in fact, exist. Perhaps you | |
2342 | put it into the wrong package? | |
2343 | ||
2344 | =item sort is now a reserved word | |
2345 | ||
2346 | (F) An ancient error message that almost nobody ever runs into anymore. | |
2347 | But before sort was a keyword, people sometimes used it as a filehandle. | |
2348 | ||
2349 | =item Sort subroutine didn't return a numeric value | |
2350 | ||
2351 | (F) A sort comparison routine must return a number. You probably blew | |
4633a7c4 | 2352 | it by not using C<E<lt>=E<gt>> or C<cmp>, or by not using them correctly. |
a0d0e21e LW |
2353 | See L<perlfunc/sort>. |
2354 | ||
2355 | =item Sort subroutine didn't return single value | |
2356 | ||
2357 | (F) A sort comparison subroutine may not return a list value with more | |
2358 | or less than one element. See L<perlfunc/sort>. | |
2359 | ||
2360 | =item Split loop | |
2361 | ||
2362 | (P) The split was looping infinitely. (Obviously, a split shouldn't iterate | |
2363 | more times than there are characters of input, which is what happened.) | |
2364 | See L<perlfunc/split>. | |
2365 | ||
8b1a09fc | 2366 | =item Stat on unopened file E<lt>%sE<gt> |
a0d0e21e LW |
2367 | |
2368 | (W) You tried to use the stat() function (or an equivalent file test) | |
54310121 | 2369 | on a filehandle that was either never opened or has since been closed. |
a0d0e21e LW |
2370 | |
2371 | =item Statement unlikely to be reached | |
2372 | ||
2373 | (W) You did an exec() with some statement after it other than a die(). | |
2374 | This is almost always an error, because exec() never returns unless | |
2375 | there was a failure. You probably wanted to use system() instead, | |
2376 | which does return. To suppress this warning, put the exec() in a block | |
2377 | by itself. | |
2378 | ||
e7ea3e70 IZ |
2379 | =item Stub found while resolving method `%s' overloading `%s' in package `%s' |
2380 | ||
2381 | (P) Overloading resolution over @ISA tree may be broken by importation stubs. | |
2382 | Stubs should never be implicitely created, but explicit calls to C<can> | |
2383 | may break this. | |
2384 | ||
a0d0e21e LW |
2385 | =item Subroutine %s redefined |
2386 | ||
2387 | (W) You redefined a subroutine. To suppress this warning, say | |
2388 | ||
2389 | { | |
2390 | local $^W = 0; | |
2391 | eval "sub name { ... }"; | |
2392 | } | |
2393 | ||
2394 | =item Substitution loop | |
2395 | ||
2396 | (P) The substitution was looping infinitely. (Obviously, a | |
2397 | substitution shouldn't iterate more times than there are characters of | |
68dc0745 | 2398 | input, which is what happened.) See the discussion of substitution in |
5f05dabc | 2399 | L<perlop/"Quote and Quote-like Operators">. |
a0d0e21e LW |
2400 | |
2401 | =item Substitution pattern not terminated | |
2402 | ||
2403 | (F) The lexer couldn't find the interior delimiter of a s/// or s{}{} | |
2404 | construct. Remember that bracketing delimiters count nesting level. | |
fb73857a | 2405 | Missing the leading C<$> from variable C<$s> may cause this error. |
a0d0e21e LW |
2406 | |
2407 | =item Substitution replacement not terminated | |
2408 | ||
2409 | (F) The lexer couldn't find the final delimiter of a s/// or s{}{} | |
2410 | construct. Remember that bracketing delimiters count nesting level. | |
fb73857a | 2411 | Missing the leading C<$> from variable C<$s> may cause this error. |
a0d0e21e LW |
2412 | |
2413 | =item substr outside of string | |
2414 | ||
3e3baf6d TB |
2415 | (S),(W) You tried to reference a substr() that pointed outside of a |
2416 | string. That is, the absolute value of the offset was larger than the | |
2417 | length of the string. See L<perlfunc/substr>. This warning is | |
2418 | mandatory if substr is used in an lvalue context (as the left hand side | |
2419 | of an assignment or as a subroutine argument for example). | |
a0d0e21e | 2420 | |
f86702cc | 2421 | =item suidperl is no longer needed since %s |
a0d0e21e LW |
2422 | |
2423 | (F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but a | |
2424 | version of the setuid emulator somehow got run anyway. | |
2425 | ||
2426 | =item syntax error | |
2427 | ||
2428 | (F) Probably means you had a syntax error. Common reasons include: | |
2429 | ||
2430 | A keyword is misspelled. | |
2431 | A semicolon is missing. | |
2432 | A comma is missing. | |
2433 | An opening or closing parenthesis is missing. | |
2434 | An opening or closing brace is missing. | |
2435 | A closing quote is missing. | |
2436 | ||
2437 | Often there will be another error message associated with the syntax | |
2438 | error giving more information. (Sometimes it helps to turn on B<-w>.) | |
2439 | The error message itself often tells you where it was in the line when | |
2440 | it decided to give up. Sometimes the actual error is several tokens | |
5f05dabc | 2441 | before this, because Perl is good at understanding random input. |
a0d0e21e LW |
2442 | Occasionally the line number may be misleading, and once in a blue moon |
2443 | the only way to figure out what's triggering the error is to call | |
2444 | C<perl -c> repeatedly, chopping away half the program each time to see | |
2445 | if the error went away. Sort of the cybernetic version of S<20 questions>. | |
2446 | ||
cb1a09d0 AD |
2447 | =item syntax error at line %d: `%s' unexpected |
2448 | ||
8b1a09fc | 2449 | (A) You've accidentally run your script through the Bourne shell |
3a52c276 | 2450 | instead of Perl. Check the #! line, or manually feed your script |
cb1a09d0 AD |
2451 | into Perl yourself. |
2452 | ||
a0d0e21e LW |
2453 | =item System V IPC is not implemented on this machine |
2454 | ||
5f05dabc | 2455 | (F) You tried to do something with a function beginning with "sem", "shm", |
a0d0e21e LW |
2456 | or "msg". See L<perlfunc/semctl>, for example. |
2457 | ||
2458 | =item Syswrite on closed filehandle | |
2459 | ||
2460 | (W) The filehandle you're writing to got itself closed sometime before now. | |
2461 | Check your logic flow. | |
2462 | ||
fc36a67e | 2463 | =item Target of goto is too deeply nested |
2464 | ||
2465 | (F) You tried to use C<goto> to reach a label that was too deeply | |
2466 | nested for Perl to reach. Perl is doing you a favor by refusing. | |
2467 | ||
8903cb82 | 2468 | =item tell() on unopened file |
a0d0e21e | 2469 | |
8903cb82 | 2470 | (W) You tried to use the tell() function on a filehandle that was either |
2471 | never opened or has since been closed. | |
a0d0e21e | 2472 | |
8b1a09fc | 2473 | =item Test on unopened file E<lt>%sE<gt> |
a0d0e21e LW |
2474 | |
2475 | (W) You tried to invoke a file test operator on a filehandle that isn't | |
2476 | open. Check your logic. See also L<perlfunc/-X>. | |
2477 | ||
2478 | =item That use of $[ is unsupported | |
2479 | ||
8b1a09fc | 2480 | (F) Assignment to C<$[> is now strictly circumscribed, and interpreted as |
5f05dabc | 2481 | a compiler directive. You may say only one of |
a0d0e21e LW |
2482 | |
2483 | $[ = 0; | |
2484 | $[ = 1; | |
2485 | ... | |
2486 | local $[ = 0; | |
2487 | local $[ = 1; | |
2488 | ... | |
2489 | ||
2490 | This is to prevent the problem of one module changing the array base | |
2491 | out from under another module inadvertently. See L<perlvar/$[>. | |
2492 | ||
2493 | =item The %s function is unimplemented | |
2494 | ||
2495 | The function indicated isn't implemented on this architecture, according | |
2496 | to the probings of Configure. | |
2497 | ||
f86702cc | 2498 | =item The crypt() function is unimplemented due to excessive paranoia |
a0d0e21e LW |
2499 | |
2500 | (F) Configure couldn't find the crypt() function on your machine, | |
2501 | probably because your vendor didn't supply it, probably because they | |
8b1a09fc | 2502 | think the U.S. Government thinks it's a secret, or at least that they |
a0d0e21e LW |
2503 | will continue to pretend that it is. And if you quote me on that, I |
2504 | will deny it. | |
2505 | ||
2506 | =item The stat preceding C<-l _> wasn't an lstat | |
2507 | ||
2508 | (F) It makes no sense to test the current stat buffer for symbolic linkhood | |
2509 | if the last stat that wrote to the stat buffer already went past | |
2510 | the symlink to get to the real file. Use an actual filename instead. | |
2511 | ||
2512 | =item times not implemented | |
2513 | ||
2514 | (F) Your version of the C library apparently doesn't do times(). I suspect | |
2515 | you're not running on Unix. | |
2516 | ||
2517 | =item Too few args to syscall | |
2518 | ||
2519 | (F) There has to be at least one argument to syscall() to specify the | |
2520 | system call to call, silly dilly. | |
2521 | ||
9607fc9c | 2522 | =item Too late for "B<-T>" option |
2523 | ||
2524 | (X) The #! line (or local equivalent) in a Perl script contains the | |
8cc95fdb | 2525 | B<-T> option, but Perl was not invoked with B<-T> in its command line. |
2526 | This is an error because, by the time Perl discovers a B<-T> in a | |
2527 | script, it's too late to properly taint everything from the environment. | |
2528 | So Perl gives up. | |
f86702cc | 2529 | |
9607fc9c | 2530 | If the Perl script is being executed as a command using the #! |
2531 | mechanism (or its local equivalent), this error can usually be fixed | |
2532 | by editing the #! line so that the B<-T> option is a part of Perl's | |
2533 | first argument: e.g. change C<perl -n -T> to C<perl -T -n>. | |
f86702cc | 2534 | |
9607fc9c | 2535 | If the Perl script is being executed as C<perl scriptname>, then the |
2536 | B<-T> option must appear on the command line: C<perl -T scriptname>. | |
f86702cc | 2537 | |
8cc95fdb | 2538 | =item Too late for "-%s" option |
2539 | ||
2540 | (X) The #! line (or local equivalent) in a Perl script contains the | |
2541 | B<-M> or B<-m> option. This is an error because B<-M> and B<-m> options | |
2542 | are not intended for use inside scripts. Use the C<use> pragma instead. | |
2543 | ||
cb1a09d0 AD |
2544 | =item Too many ('s |
2545 | ||
2546 | =item Too many )'s | |
2547 | ||
2548 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
2549 | of Perl. Check the #! line, or manually feed your script into |
2550 | Perl yourself. | |
cb1a09d0 | 2551 | |
a0d0e21e LW |
2552 | =item Too many args to syscall |
2553 | ||
5f05dabc | 2554 | (F) Perl supports a maximum of only 14 args to syscall(). |
a0d0e21e LW |
2555 | |
2556 | =item Too many arguments for %s | |
2557 | ||
2558 | (F) The function requires fewer arguments than you specified. | |
2559 | ||
2560 | =item trailing \ in regexp | |
2561 | ||
2562 | (F) The regular expression ends with an unbackslashed backslash. Backslash | |
2563 | it. See L<perlre>. | |
2564 | ||
2c268ad5 | 2565 | =item Transliteration pattern not terminated |
a0d0e21e LW |
2566 | |
2567 | (F) The lexer couldn't find the interior delimiter of a tr/// or tr[][] | |
fb73857a | 2568 | or y/// or y[][] construct. Missing the leading C<$> from variables |
2569 | C<$tr> or C<$y> may cause this error. | |
a0d0e21e | 2570 | |
2c268ad5 | 2571 | =item Transliteration replacement not terminated |
a0d0e21e LW |
2572 | |
2573 | (F) The lexer couldn't find the final delimiter of a tr/// or tr[][] | |
2574 | construct. | |
2575 | ||
2576 | =item truncate not implemented | |
2577 | ||
2578 | (F) Your machine doesn't implement a file truncation mechanism that | |
2579 | Configure knows about. | |
2580 | ||
2581 | =item Type of arg %d to %s must be %s (not %s) | |
2582 | ||
2583 | (F) This function requires the argument in that position to be of a | |
8b1a09fc | 2584 | certain type. Arrays must be @NAME or C<@{EXPR}>. Hashes must be |
2585 | %NAME or C<%{EXPR}>. No implicit dereferencing is allowed--use the | |
a0d0e21e LW |
2586 | {EXPR} forms as an explicit dereference. See L<perlref>. |
2587 | ||
2588 | =item umask: argument is missing initial 0 | |
2589 | ||
5f05dabc | 2590 | (W) A umask of 222 is incorrect. It should be 0222, because octal literals |
a0d0e21e LW |
2591 | always start with 0 in Perl, as in C. |
2592 | ||
4633a7c4 LW |
2593 | =item Unable to create sub named "%s" |
2594 | ||
2595 | (F) You attempted to create or access a subroutine with an illegal name. | |
2596 | ||
a0d0e21e LW |
2597 | =item Unbalanced context: %d more PUSHes than POPs |
2598 | ||
2599 | (W) The exit code detected an internal inconsistency in how many execution | |
2600 | contexts were entered and left. | |
2601 | ||
2602 | =item Unbalanced saves: %d more saves than restores | |
2603 | ||
2604 | (W) The exit code detected an internal inconsistency in how many | |
2605 | values were temporarily localized. | |
2606 | ||
2607 | =item Unbalanced scopes: %d more ENTERs than LEAVEs | |
2608 | ||
2609 | (W) The exit code detected an internal inconsistency in how many blocks | |
2610 | were entered and left. | |
2611 | ||
2612 | =item Unbalanced tmps: %d more allocs than frees | |
2613 | ||
2614 | (W) The exit code detected an internal inconsistency in how many mortal | |
2615 | scalars were allocated and freed. | |
2616 | ||
2617 | =item Undefined format "%s" called | |
2618 | ||
2619 | (F) The format indicated doesn't seem to exist. Perhaps it's really in | |
2620 | another package? See L<perlform>. | |
2621 | ||
2622 | =item Undefined sort subroutine "%s" called | |
2623 | ||
2624 | (F) The sort comparison routine specified doesn't seem to exist. Perhaps | |
2625 | it's in a different package? See L<perlfunc/sort>. | |
2626 | ||
2627 | =item Undefined subroutine &%s called | |
2628 | ||
2629 | (F) The subroutine indicated hasn't been defined, or if it was, it | |
2630 | has since been undefined. | |
2631 | ||
2632 | =item Undefined subroutine called | |
2633 | ||
2634 | (F) The anonymous subroutine you're trying to call hasn't been defined, | |
2635 | or if it was, it has since been undefined. | |
2636 | ||
2637 | =item Undefined subroutine in sort | |
2638 | ||
2639 | (F) The sort comparison routine specified is declared but doesn't seem to | |
2640 | have been defined yet. See L<perlfunc/sort>. | |
2641 | ||
4633a7c4 LW |
2642 | =item Undefined top format "%s" called |
2643 | ||
2644 | (F) The format indicated doesn't seem to exist. Perhaps it's really in | |
2645 | another package? See L<perlform>. | |
2646 | ||
20408e3c GS |
2647 | =item Undefined value assigned to typeglob |
2648 | ||
2649 | (W) An undefined value was assigned to a typeglob, a la C<*foo = undef>. | |
2650 | This does nothing. It's possible that you really mean C<undef *foo>. | |
2651 | ||
a0d0e21e LW |
2652 | =item unexec of %s into %s failed! |
2653 | ||
2654 | (F) The unexec() routine failed for some reason. See your local FSF | |
2655 | representative, who probably put it there in the first place. | |
2656 | ||
2657 | =item Unknown BYTEORDER | |
2658 | ||
5f05dabc | 2659 | (F) There are no byte-swapping functions for a machine with this byte order. |
a0d0e21e LW |
2660 | |
2661 | =item unmatched () in regexp | |
2662 | ||
2663 | (F) Unbackslashed parentheses must always be balanced in regular | |
2664 | expressions. If you're a vi user, the % key is valuable for finding | |
5f05dabc | 2665 | the matching parenthesis. See L<perlre>. |
a0d0e21e LW |
2666 | |
2667 | =item Unmatched right bracket | |
2668 | ||
2669 | (F) The lexer counted more closing curly brackets (braces) than opening | |
2670 | ones, so you're probably missing an opening bracket. As a general | |
2671 | rule, you'll find the missing one (so to speak) near the place you were | |
2672 | last editing. | |
2673 | ||
2674 | =item unmatched [] in regexp | |
2675 | ||
2676 | (F) The brackets around a character class must match. If you wish to | |
2677 | include a closing bracket in a character class, backslash it or put it first. | |
2678 | See L<perlre>. | |
2679 | ||
2680 | =item Unquoted string "%s" may clash with future reserved word | |
2681 | ||
54310121 | 2682 | (W) You used a bareword that might someday be claimed as a reserved word. |
a0d0e21e LW |
2683 | It's best to put such a word in quotes, or capitalize it somehow, or insert |
2684 | an underbar into it. You might also declare it as a subroutine. | |
2685 | ||
54310121 | 2686 | =item Unrecognized character %s |
a0d0e21e | 2687 | |
54310121 | 2688 | (F) The Perl parser has no idea what to do with the specified character |
2689 | in your Perl script (or eval). Perhaps you tried to run a compressed | |
2690 | script, a binary program, or a directory as a Perl program. | |
a0d0e21e LW |
2691 | |
2692 | =item Unrecognized signal name "%s" | |
2693 | ||
2694 | (F) You specified a signal name to the kill() function that was not recognized. | |
2695 | Say C<kill -l> in your shell to see the valid signal names on your system. | |
2696 | ||
90248788 | 2697 | =item Unrecognized switch: -%s (-h will show valid options) |
a0d0e21e LW |
2698 | |
2699 | (F) You specified an illegal option to Perl. Don't do that. | |
2700 | (If you think you didn't do that, check the #! line to see if it's | |
2701 | supplying the bad switch on your behalf.) | |
2702 | ||
2703 | =item Unsuccessful %s on filename containing newline | |
2704 | ||
2705 | (W) A file operation was attempted on a filename, and that operation | |
2706 | failed, PROBABLY because the filename contained a newline, PROBABLY | |
54310121 | 2707 | because you forgot to chop() or chomp() it off. See L<perlfunc/chomp>. |
a0d0e21e LW |
2708 | |
2709 | =item Unsupported directory function "%s" called | |
2710 | ||
2711 | (F) Your machine doesn't support opendir() and readdir(). | |
2712 | ||
54310121 | 2713 | =item Unsupported function fork |
2714 | ||
2715 | (F) Your version of executable does not support forking. | |
2716 | ||
2717 | Note that under some systems, like OS/2, there may be different flavors of | |
2718 | Perl executables, some of which may support fork, some not. Try changing | |
2719 | the name you call Perl by to C<perl_>, C<perl__>, and so on. | |
2720 | ||
a0d0e21e LW |
2721 | =item Unsupported function %s |
2722 | ||
7b8d334a | 2723 | (F) This machine doesn't implement the indicated function, apparently. |
a0d0e21e LW |
2724 | At least, Configure doesn't think so. |
2725 | ||
2726 | =item Unsupported socket function "%s" called | |
2727 | ||
2728 | (F) Your machine doesn't support the Berkeley socket mechanism, or at | |
2729 | least that's what Configure thought. | |
2730 | ||
8b1a09fc | 2731 | =item Unterminated E<lt>E<gt> operator |
a0d0e21e LW |
2732 | |
2733 | (F) The lexer saw a left angle bracket in a place where it was expecting | |
2734 | a term, so it's looking for the corresponding right angle bracket, and not | |
2735 | finding it. Chances are you left some needed parentheses out earlier in | |
2736 | the line, and you really meant a "less than". | |
2737 | ||
5cd24f17 | 2738 | =item Use of "$$<digit>" to mean "${$}<digit>" is deprecated |
2739 | ||
2740 | (D) Perl versions before 5.004 misinterpreted any type marker followed | |
2741 | by "$" and a digit. For example, "$$0" was incorrectly taken to mean | |
2742 | "${$}0" instead of "${$0}". This bug is (mostly) fixed in Perl 5.004. | |
2743 | ||
2744 | However, the developers of Perl 5.004 could not fix this bug completely, | |
2745 | because at least two widely-used modules depend on the old meaning of | |
2746 | "$$0" in a string. So Perl 5.004 still interprets "$$<digit>" in the | |
2747 | old (broken) way inside strings; but it generates this message as a | |
2748 | warning. And in Perl 5.005, this special treatment will cease. | |
2749 | ||
a0d0e21e LW |
2750 | =item Use of $# is deprecated |
2751 | ||
8b1a09fc | 2752 | (D) This was an ill-advised attempt to emulate a poorly defined B<awk> feature. |
a0d0e21e LW |
2753 | Use an explicit printf() or sprintf() instead. |
2754 | ||
2755 | =item Use of $* is deprecated | |
2756 | ||
4a6725af | 2757 | (D) This variable magically turned on multi-line pattern matching, both for |
a0d0e21e LW |
2758 | you and for any luckless subroutine that you happen to call. You should |
2759 | use the new C<//m> and C<//s> modifiers now to do that without the dangerous | |
2760 | action-at-a-distance effects of C<$*>. | |
2761 | ||
748a9306 LW |
2762 | =item Use of %s in printf format not supported |
2763 | ||
5f05dabc | 2764 | (F) You attempted to use a feature of printf that is accessible from |
2765 | only C. This usually means there's a better way to do it in Perl. | |
748a9306 | 2766 | |
8b1a09fc | 2767 | =item Use of bare E<lt>E<lt> to mean E<lt>E<lt>"" is deprecated |
4633a7c4 LW |
2768 | |
2769 | (D) You are now encouraged to use the explicitly quoted form if you | |
3fe9a6f1 | 2770 | wish to use an empty line as the terminator of the here-document. |
4633a7c4 | 2771 | |
a0d0e21e LW |
2772 | =item Use of implicit split to @_ is deprecated |
2773 | ||
2774 | (D) It makes a lot of work for the compiler when you clobber a | |
2775 | subroutine's argument list, so it's better if you assign the results of | |
2776 | a split() explicitly to an array (or list). | |
2777 | ||
dc848c6f | 2778 | =item Use of inherited AUTOLOAD for non-method %s() is deprecated |
2779 | ||
5cd24f17 | 2780 | (D) As an (ahem) accidental feature, C<AUTOLOAD> subroutines are looked |
2781 | up as methods (using the C<@ISA> hierarchy) even when the subroutines to | |
2782 | be autoloaded were called as plain functions (e.g. C<Foo::bar()>), not | |
7b8d334a | 2783 | as methods (e.g. C<Foo-E<gt>bar()> or C<$obj-E<gt>bar()>). |
dc848c6f | 2784 | |
2785 | This bug will be rectified in Perl 5.005, which will use method lookup | |
2786 | only for methods' C<AUTOLOAD>s. However, there is a significant base | |
2787 | of existing code that may be using the old behavior. So, as an | |
2788 | interim step, Perl 5.004 issues an optional warning when non-methods | |
2789 | use inherited C<AUTOLOAD>s. | |
2790 | ||
2791 | The simple rule is: Inheritance will not work when autoloading | |
2792 | non-methods. The simple fix for old code is: In any module that used to | |
2793 | depend on inheriting C<AUTOLOAD> for non-methods from a base class named | |
2794 | C<BaseClass>, execute C<*AUTOLOAD = \&BaseClass::AUTOLOAD> during startup. | |
2795 | ||
fb73857a | 2796 | In code that currently says C<use AutoLoader; @ISA = qw(AutoLoader);> you |
2797 | should remove AutoLoader from @ISA and change C<use AutoLoader;> to | |
7b8d334a | 2798 | C<use AutoLoader 'AUTOLOAD';>. |
fb73857a | 2799 | |
85b81015 LW |
2800 | =item Use of reserved word "%s" is deprecated |
2801 | ||
2802 | (D) The indicated bareword is a reserved word. Future versions of perl | |
2803 | may use it as a keyword, so you're better off either explicitly quoting | |
2804 | the word in a manner appropriate for its context of use, or using a | |
2805 | different name altogether. The warning can be suppressed for subroutine | |
2806 | names by either adding a C<&> prefix, or using a package qualifier, | |
2807 | e.g. C<&our()>, or C<Foo::our()>. | |
2808 | ||
dc848c6f | 2809 | =item Use of %s is deprecated |
2810 | ||
2811 | (D) The construct indicated is no longer recommended for use, generally | |
2812 | because there's a better way to do it, and also because the old way has | |
2813 | bad side effects. | |
2814 | ||
a0d0e21e LW |
2815 | =item Use of uninitialized value |
2816 | ||
2817 | (W) An undefined value was used as if it were already defined. It was | |
2818 | interpreted as a "" or a 0, but maybe it was a mistake. To suppress this | |
2819 | warning assign an initial value to your variables. | |
2820 | ||
2821 | =item Useless use of %s in void context | |
2822 | ||
2823 | (W) You did something without a side effect in a context that does nothing | |
2824 | with the return value, such as a statement that doesn't return a value | |
2825 | from a block, or the left side of a scalar comma operator. Very often | |
2826 | this points not to stupidity on your part, but a failure of Perl to parse | |
2827 | your program the way you thought it would. For example, you'd get this | |
2828 | if you mixed up your C precedence with Python precedence and said | |
2829 | ||
2830 | $one, $two = 1, 2; | |
2831 | ||
2832 | when you meant to say | |
2833 | ||
2834 | ($one, $two) = (1, 2); | |
2835 | ||
748a9306 LW |
2836 | Another common error is to use ordinary parentheses to construct a list |
2837 | reference when you should be using square or curly brackets, for | |
2838 | example, if you say | |
2839 | ||
2840 | $array = (1,2); | |
2841 | ||
2842 | when you should have said | |
2843 | ||
2844 | $array = [1,2]; | |
2845 | ||
2846 | The square brackets explicitly turn a list value into a scalar value, | |
2847 | while parentheses do not. So when a parenthesized list is evaluated in | |
2848 | a scalar context, the comma is treated like C's comma operator, which | |
2849 | throws away the left argument, which is not what you want. See | |
2850 | L<perlref> for more on this. | |
2851 | ||
55497cff | 2852 | =item untie attempted while %d inner references still exist |
2853 | ||
2854 | (W) A copy of the object returned from C<tie> (or C<tied>) was still | |
2855 | valid when C<untie> was called. | |
2856 | ||
68dc0745 | 2857 | =item Value of %s can be "0"; test with defined() |
a6006777 | 2858 | |
68dc0745 | 2859 | (W) In a conditional expression, you used <HANDLE>, <*> (glob), C<each()>, |
2860 | or C<readdir()> as a boolean value. Each of these constructs can return a | |
2861 | value of "0"; that would make the conditional expression false, which is | |
2862 | probably not what you intended. When using these constructs in conditional | |
2863 | expressions, test their values with the C<defined> operator. | |
a6006777 | 2864 | |
9607fc9c | 2865 | =item Variable "%s" is not imported%s |
4633a7c4 LW |
2866 | |
2867 | (F) While "use strict" in effect, you referred to a global variable | |
2868 | that you apparently thought was imported from another module, because | |
2869 | something else of the same name (usually a subroutine) is exported | |
2870 | by that module. It usually means you put the wrong funny character | |
2871 | on the front of your variable. | |
2872 | ||
44a8e56a | 2873 | =item Variable "%s" may be unavailable |
2874 | ||
2875 | (W) An inner (nested) I<anonymous> subroutine is inside a I<named> | |
2876 | subroutine, and outside that is another subroutine; and the anonymous | |
2877 | (innermost) subroutine is referencing a lexical variable defined in | |
2878 | the outermost subroutine. For example: | |
2879 | ||
2880 | sub outermost { my $a; sub middle { sub { $a } } } | |
2881 | ||
2882 | If the anonymous subroutine is called or referenced (directly or | |
2883 | indirectly) from the outermost subroutine, it will share the variable | |
2884 | as you would expect. But if the anonymous subroutine is called or | |
2885 | referenced when the outermost subroutine is not active, it will see | |
2886 | the value of the shared variable as it was before and during the | |
2887 | *first* call to the outermost subroutine, which is probably not what | |
2888 | you want. | |
2889 | ||
2890 | In these circumstances, it is usually best to make the middle | |
2891 | subroutine anonymous, using the C<sub {}> syntax. Perl has specific | |
2892 | support for shared variables in nested anonymous subroutines; a named | |
2893 | subroutine in between interferes with this feature. | |
2894 | ||
2895 | =item Variable "%s" will not stay shared | |
2896 | ||
2897 | (W) An inner (nested) I<named> subroutine is referencing a lexical | |
2898 | variable defined in an outer subroutine. | |
2899 | ||
2900 | When the inner subroutine is called, it will probably see the value of | |
2901 | the outer subroutine's variable as it was before and during the | |
2902 | *first* call to the outer subroutine; in this case, after the first | |
2903 | call to the outer subroutine is complete, the inner and outer | |
2904 | subroutines will no longer share a common value for the variable. In | |
2905 | other words, the variable will no longer be shared. | |
2906 | ||
2907 | Furthermore, if the outer subroutine is anonymous and references a | |
2908 | lexical variable outside itself, then the outer and inner subroutines | |
2909 | will I<never> share the given variable. | |
2910 | ||
2911 | This problem can usually be solved by making the inner subroutine | |
2912 | anonymous, using the C<sub {}> syntax. When inner anonymous subs that | |
2913 | reference variables in outer subroutines are called or referenced, | |
54310121 | 2914 | they are automatically rebound to the current values of such |
44a8e56a | 2915 | variables. |
2916 | ||
f86702cc | 2917 | =item Variable syntax |
cb1a09d0 AD |
2918 | |
2919 | (A) You've accidentally run your script through B<csh> instead | |
3a52c276 CS |
2920 | of Perl. Check the #! line, or manually feed your script into |
2921 | Perl yourself. | |
cb1a09d0 | 2922 | |
3e6e419a JH |
2923 | =item perl: warning: Setting locale failed. |
2924 | ||
2925 | (S) The whole warning message will look something like: | |
2926 | ||
2927 | perl: warning: Setting locale failed. | |
2928 | perl: warning: Please check that your locale settings: | |
2929 | LC_ALL = "En_US", | |
2930 | LANG = (unset) | |
2931 | are supported and installed on your system. | |
2932 | perl: warning: Falling back to the standard locale ("C"). | |
2933 | ||
2934 | Exactly what were the failed locale settings varies. In the above the | |
2935 | settings were that the LC_ALL was "En_US" and the LANG had no value. | |
2936 | This error means that Perl detected that you and/or your system | |
2937 | administrator have set up the so-called variable system but Perl could | |
2938 | not use those settings. This was not dead serious, fortunately: there | |
2939 | is a "default locale" called "C" that Perl can and will use, the | |
2940 | script will be run. Before you really fix the problem, however, you | |
2941 | will get the same error message each time you run Perl. How to really | |
2942 | fix the problem can be found in L<perllocale> section B<LOCALE PROBLEMS>. | |
2943 | ||
7e1af8bc | 2944 | =item Warning: something's wrong |
5f05dabc | 2945 | |
2946 | (W) You passed warn() an empty string (the equivalent of C<warn "">) or | |
2947 | you called it with no args and C<$_> was empty. | |
2948 | ||
f86702cc | 2949 | =item Warning: unable to close filehandle %s properly |
a0d0e21e | 2950 | |
8b1a09fc | 2951 | (S) The implicit close() done by an open() got an error indication on the |
5f05dabc | 2952 | close(). This usually indicates your file system ran out of disk space. |
a0d0e21e | 2953 | |
5f05dabc | 2954 | =item Warning: Use of "%s" without parentheses is ambiguous |
a0d0e21e LW |
2955 | |
2956 | (S) You wrote a unary operator followed by something that looks like a | |
2957 | binary operator that could also have been interpreted as a term or | |
2958 | unary operator. For instance, if you know that the rand function | |
2959 | has a default argument of 1.0, and you write | |
2960 | ||
2961 | rand + 5; | |
2962 | ||
2963 | you may THINK you wrote the same thing as | |
2964 | ||
2965 | rand() + 5; | |
2966 | ||
2967 | but in actual fact, you got | |
2968 | ||
2969 | rand(+5); | |
2970 | ||
5f05dabc | 2971 | So put in parentheses to say what you really mean. |
a0d0e21e LW |
2972 | |
2973 | =item Write on closed filehandle | |
2974 | ||
2975 | (W) The filehandle you're writing to got itself closed sometime before now. | |
2976 | Check your logic flow. | |
2977 | ||
2978 | =item X outside of string | |
2979 | ||
2980 | (F) You had a pack template that specified a relative position before | |
2981 | the beginning of the string being unpacked. See L<perlfunc/pack>. | |
2982 | ||
2983 | =item x outside of string | |
2984 | ||
2985 | (F) You had a pack template that specified a relative position after | |
2986 | the end of the string being unpacked. See L<perlfunc/pack>. | |
2987 | ||
2988 | =item Xsub "%s" called in sort | |
2989 | ||
2990 | (F) The use of an external subroutine as a sort comparison is not yet supported. | |
2991 | ||
2992 | =item Xsub called in sort | |
2993 | ||
2994 | (F) The use of an external subroutine as a sort comparison is not yet supported. | |
2995 | ||
2996 | =item You can't use C<-l> on a filehandle | |
2997 | ||
2998 | (F) A filehandle represents an opened file, and when you opened the file it | |
2999 | already went past any symlink you are presumably trying to look for. | |
3000 | Use a filename instead. | |
3001 | ||
3002 | =item YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET! | |
3003 | ||
5f05dabc | 3004 | (F) And you probably never will, because you probably don't have the |
a0d0e21e LW |
3005 | sources to your kernel, and your vendor probably doesn't give a rip |
3006 | about what you want. Your best bet is to use the wrapsuid script in | |
3007 | the eg directory to put a setuid C wrapper around your script. | |
3008 | ||
3009 | =item You need to quote "%s" | |
3010 | ||
3011 | (W) You assigned a bareword as a signal handler name. Unfortunately, you | |
3012 | already have a subroutine of that name declared, which means that Perl 5 | |
3013 | will try to call the subroutine when the assignment is executed, which is | |
3014 | probably not what you want. (If it IS what you want, put an & in front.) | |
3015 | ||
3016 | =item [gs]etsockopt() on closed fd | |
3017 | ||
3018 | (W) You tried to get or set a socket option on a closed socket. | |
3019 | Did you forget to check the return value of your socket() call? | |
3020 | See L<perlfunc/getsockopt>. | |
3021 | ||
3022 | =item \1 better written as $1 | |
3023 | ||
3024 | (W) Outside of patterns, backreferences live on as variables. The use | |
5f05dabc | 3025 | of backslashes is grandfathered on the right-hand side of a |
a0d0e21e LW |
3026 | substitution, but stylistically it's better to use the variable form |
3027 | because other Perl programmers will expect it, and it works better | |
3028 | if there are more than 9 backreferences. | |
3029 | ||
8b1a09fc | 3030 | =item '|' and 'E<lt>' may not both be specified on command line |
748a9306 LW |
3031 | |
3032 | (F) An error peculiar to VMS. Perl does its own command line redirection, and | |
3033 | found that STDIN was a pipe, and that you also tried to redirect STDIN using | |
8b1a09fc | 3034 | 'E<lt>'. Only one STDIN stream to a customer, please. |
748a9306 | 3035 | |
8b1a09fc | 3036 | =item '|' and 'E<gt>' may not both be specified on command line |
748a9306 LW |
3037 | |
3038 | (F) An error peculiar to VMS. Perl does its own command line redirection, and | |
3039 | thinks you tried to redirect stdout both to a file and into a pipe to another | |
3040 | command. You need to choose one or the other, though nothing's stopping you | |
3041 | from piping into a program or Perl script which 'splits' output into two | |
3042 | streams, such as | |
3043 | ||
3044 | open(OUT,">$ARGV[0]") or die "Can't write to $ARGV[0]: $!"; | |
3045 | while (<STDIN>) { | |
3046 | print; | |
3047 | print OUT; | |
3048 | } | |
3049 | close OUT; | |
3050 | ||
774d564b | 3051 | =item Got an error from DosAllocMem |
33c8a3fe | 3052 | |
774d564b | 3053 | (P) An error peculiar to OS/2. Most probably you're using an obsolete |
3054 | version of Perl, and this should not happen anyway. | |
33c8a3fe IZ |
3055 | |
3056 | =item Malformed PERLLIB_PREFIX | |
3057 | ||
dc848c6f | 3058 | (F) An error peculiar to OS/2. PERLLIB_PREFIX should be of the form |
33c8a3fe IZ |
3059 | |
3060 | prefix1;prefix2 | |
3061 | ||
3062 | or | |
3063 | ||
3064 | prefix1 prefix2 | |
3065 | ||
dc848c6f | 3066 | with nonempty prefix1 and prefix2. If C<prefix1> is indeed a prefix |
3067 | of a builtin library search path, prefix2 is substituted. The error | |
3068 | may appear if components are not found, or are too long. See | |
3069 | "PERLLIB_PREFIX" in F<README.os2>. | |
33c8a3fe IZ |
3070 | |
3071 | =item PERL_SH_DIR too long | |
3072 | ||
54310121 | 3073 | (F) An error peculiar to OS/2. PERL_SH_DIR is the directory to find the |
dc848c6f | 3074 | C<sh>-shell in. See "PERL_SH_DIR" in F<README.os2>. |
33c8a3fe IZ |
3075 | |
3076 | =item Process terminated by SIG%s | |
3077 | ||
3078 | (W) This is a standard message issued by OS/2 applications, while *nix | |
dc848c6f | 3079 | applications die in silence. It is considered a feature of the OS/2 |
3080 | port. One can easily disable this by appropriate sighandlers, see | |
3081 | L<perlipc/"Signals">. See also "Process terminated by SIGTERM/SIGINT" | |
3082 | in F<README.os2>. | |
33c8a3fe | 3083 | |
a0d0e21e LW |
3084 | =back |
3085 |