I am running several CentOS 5.2 servers with similar configuration. On all of them I received the following error when using a certain perl module: > Base class package "Class::Accessor::Fast" is empty. > (Perhaps you need to 'use' the module which defines that package > first.) On most of the servers installing Class::Accessor::Fast manually via CPAN shell has resolved the problem, but there is two of them where this did not help. I know that during setup of these hosts I used yum and cpan shell both to install perl modules; I guess that was wrong to do. Now even an "install Bundle::CPAN" in cpan shell does not solve the problem. How can I find out what exactly goes wrong there? Googling for the error message does not show up anything helpful. Dirk