You will likely need perl's CPAN working for installing perl modules. You can insure it is configured by running:
perl -MCPAN -e shell
If that command does not give you a shell prompt, then you will be prompted to configure. You must do so as root, or via sudo (as shown).
sudo perl -MCPAN -e shell exit
After configuration, you will return to a prompt and the command "exit" will get you back to your shell.