On my media server, I wanted to set up Perl’s CPAN but when I ran install Bundle::CPAN, I ctrl-c’d out of it when I noticed that bzip2 wasn’t installed. Silly me. Soon after I started receiving:
Can’t call method “value” on an undefined value at /usr/share/perl5/IO/Uncompress/RawInflate.pm
Reinstalling Perl and all the related ubuntu packages doesn’t fix it, nor does removing the ~root/.cpan dir. There is an easy workaround though.
# aptitude remove libcompress-raw-zlib-perl
Reading package lists… Done
Building dependency
tree
Reading state information… Done
Reading extended state information
Initializing package states… Done
Building tag database… Done
The following packages are BROKEN:
libio-compress-zlib-perl
The following packages have been kept back:
bind9-host dnsutils libbind9-
30 libisccfg30
The following packages will be REMOVED:
libcompress-raw-zlib-perl
0 packages upgraded,
0 newly installed,
1 to remove and
4 not upgraded.
Need to get 0B of archives. After unpacking 319kB will be freed.
The following packages have unmet dependencies:
libio-compress-zlib-perl: Depends: libcompress-raw-zlib-perl
(>=
2.008) but it is not installable
Resolving dependencies…
The following actions will resolve these dependencies:
Remove the following packages:
apparmor-utils
libcompress-zlib-perl
libio-compress-zlib-perl
libmp3-tag-perl
librpc-xml-perl
libwww-perl
libxml-parser-perl
ubuntu-standard
Score is 592
Accept this solution? [Y/n/q/?]
Make a note of the packages that it will remove, then tell it to go ahead. It will remove these packages!
Start cpan, and type in
install Bundle::CPAN
. When it is complete, reinstall the ubuntu packages that you removed earlier (for example):
# aptitude install apparmor-utils libcompress-zlib-perl libio-compress-zlib-perl libmp3-tag-perl librpc-xml-perl libwww-perl libxml-parser-perl ubuntu-standard
That’s it. Your cpan is working again 
