Hello, I've just installed a mod_perl enabled Apache and I am trying to configure it. I ran into the "can't call register_cleanup on an undefined value" while I was trying out the sample startup.pl file in the "Writing Apache Modules in Perl and C" book. I did see the note about this in the troubleshooting, but the fix didn't solve my problem. Here's my httpd.conf: ... Alias /perl/ /usr/local/apachemp/cgi-bin/ PerlPostReadRequestHandler 'sub { Apache->request(shift) }' PerlModule Apache::Registry PerlFreshRestart On PerlRequire conf/startup.pl <Location /perl> SetHandler perl-script PerlHandler Apache::Registry Options ExecCGI allow from all PerlSendHeader on </Location> <Location /hello/world> SetHandler perl-script PerlHandler Apache::Hello </Location> And here is conf/startup.pl... #!/usr/local/bin/perl BEGIN { use Apache (); use lib Apache->server_root_relative('lib/perl'); } use Apache::Registry(); use Apache::Constants(); use CGI::Carp (); use CGI qw(-compile :all); 1; It dies on the use CGI qw(-compile :all); line, with the message: [root@dungeon apachemp]# ./bin/apachectl configtest [Tue Jul 31 00:54:54 2001] [error] [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] CGI.pm: Can't call method "register_cleanup" on an undefined value at /usr/lib/perl5/5.6.0/CGI/Object.pm line 225. [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] startup.pl: BEGIN failed--compilation aborted at conf/startup.pl line 14. [Tue Jul 31 00:54:54 2001] startup.pl: Compilation failed in require. Syntax error on line 995 of /usr/local/apache/conf/httpd.conf: [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] CGI.pm: Can't call method "register_cleanup" on an undefined value at /usr/lib/perl5/5.6.0/CGI/Object.pm line 225. [Tue Jul 31 00:54:54 2001] startup.pl: [Tue Jul 31 00:54:54 2001] startup.pl: BEGIN failed--compilation aborted at conf/startup.pl line 14. [Tue Jul 31 00:54:54 2001] startup.pl: Compilation failed in require. [root@dungeon apachemp]# I'm running the following versions of the software: Apache 1.3.20 mod_perl 1.26 CGI.pm 3.02 I saw the note about it in the faq/troubleshooting section of the docs on perl.apache.org, but as you can see I made the suggested change (the PerlPostReadRequestHandler line in httpd) and I still get the error. Any ideas? I'm not doing anything fancy, these are all default installs of everything, just following the docs for installation and the book for the startup.pl. The server starts and runs fine if I remove the use CGI qw(-compile :all); line. Thanks, Fran