大家帮忙看看这是什么错误

anonymous1

Can't locate Digest/MD5.pm in @INC (@INC contains: /usr/lib/perl5/5.00503/i386-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i386-linux /usr/lib/perl5/site_perl/5.005 /home/httpd/cgi-bin/openwebmail) at /home/httpd/cgi-bin/openwebmail/modules/tool.pl line 7.
BEGIN failed--compilation aborted at /home/httpd/cgi-bin/openwebmail/modules/tool.pl line 7.

系统环境为：RH LINUX 6.2 OPENWEBMAIL 2.32 PERL 5.0
/home/httpd/cgi-bin/openwebmail/modules/tool.pl的前面几行如下：

package ow::tool;
use strict;
#
# tool.pl - routines independent with openwebmail systems
#

use Digest::MD5 qw(md5);
use Carp;
$Carp::MaxArgNums = 0; # return all args in Carp output

Snoopy

tool.pl的7行看不出是什么，

openwebmail编译时是不是lib版本不一样 ？