Error restarting httpd during OTRS Install on CentOS 6

Question

I'm trying to install OTRS Help Desk 3.3.2 on Cent OS 6.5 (Final). The initial installation (yum install) goes smoothly enough. The next step is to restart httpd, but the restart keeps failing. I don't get an error in the console, but when I check the error logs, I can see that it fails each time for the same reason:

[Mon Dec 09 15:59:42 2013] [error] Can't locate 
    /opt/otrs/scripts/apache2-perl-startup.pl in @INC 
    (@INC contains: /usr/local/lib64/perl5 
    /usr/local/share/perl5 
    /usr/lib64/perl5/vendor_perl 
    /usr/share/perl5/vendor_perl 
    /usr/lib64/perl5 
    /usr/share/perl5 . /etc/httpd) at (eval 2) line 1

[Mon Dec 09 15:59:42 2013] [error] Can't load Perl file: 
    /opt/otrs/scripts/apache2-perl-startup.pl 
    for server vsvrotrsdev.companydomain.com:0, exiting...

I'm a Linux/Apache/OTRS noob, so I'm not sure what to do with the error. Searching hasn't yielded much so far.

EDIT

I found some posts on what @INC is and how it works. I've tried adding /opt/otrs/scripts to @INC, but that doesn't seem to help.

Answer 1

Not positive this is your issue, as it could be several things. In newer versions the installation has been made easier, but I found part of the configuration for apache to be a little off. If you look in your OTRS conf file (on CentOS it is /etc/httpd/conf.d/zzz_otrs.conf) on about line 14 you will see:

<IfModule mod_perl.c>

if your mod_perl is included as mod_perl.so this causes an issue, simply change it to

<IfModule mod_perl.so>