Code:
opt/slimserver/Bin/build-perl-modules.pl
That's the script you were running. Thus it appears it (slimserver app) needs to build a few additional Perl modules as some of its last steps of prepping itself for readiness to be used.
Should able to extract, find, and even make (as a user).
(thus, no explanation for the error). Perhaps a download problem happened -- you might try again. cpan (Perl stuff) used to need to be configured and lwp used to need to be installed -- but that was on 5.8.x Perl whereas Slack 12.2 uses 5.10.x Perl -- Yay!! for using 5.10.x Perl!!
My 5.10.x Perl around toits **will soon** happen as will my Slack 12.2 around toits.
To install (the additional Perl modules), however, will require rootly powers (unless you install the modules to your user's home folder).
Alan.