in reply to How to locate an error in a CGI application

how can I get to the specific module and line of code ?

Insert at the top of your script

use Carp; $SIG{__WARN__} = \&Carp::cluck;

That will output a backtrace at each warning.

update - lowercase'd cluck

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}