I followed the instructions in INSTALL in Ubuntu 12.04. carton does not give any errors, but when I try to run the server I get

nikki@ubuntu:~/musicbrainz-server$ carton exec – plackup -Ilib -r
Watching ./lib app.psgi for file updates.
Error while loading /home/nikki/musicbrainz-server/app.psgi: Can't locate Plack/Middleware/Debug/Base.pm in @INC (@INC contains: lib local/lib/perl5/i686-linux-gnu-thread-multi-64int local/lib/perl5 . /usr/share/perl/5.14 /usr/lib/perl/5.14) at /usr/share/perl/5.14/parent.pm line 20.
BEGIN failed--compilation aborted at lib/Plack/Middleware/Debug/DAOLogger.pm line 2.
Compilation failed in require at /home/nikki/musicbrainz-server/app.psgi line 8.
BEGIN failed--compilation aborted at /home/nikki/musicbrainz-server/app.psgi line 8.

This has been happening to a bunch of people, e.g. http://www.google.de/search?q=%22Can%27t+locate+Plack%2FMiddleware%2FDebug%2FBase.pm%22+site%3Achatlogs.musicbrainz.org and carton install Plack::Middleware::Debug::Base does nothing.

The solution for that seems to be to use https://github.com/warpr/musicbrainz-server/raw/cpanfile/cpanfile in which case, why don't we just use that cpanfile in the first place?

But then, after that, I get

nikki@ubuntu:~/musicbrainz-server$ carton exec – plackup -Ilib -r
Watching ./lib app.psgi for file updates.
Error while loading /home/nikki/musicbrainz-server/app.psgi: Can't locate Math/Random/Secure.pm in @INC (@INC contains: lib local/lib/perl5/i686-linux-gnu-thread-multi-64int local/lib/perl5 . /usr/share/perl/5.14 /usr/lib/perl/5.14) at lib/MusicBrainz/Server/Data/Utils.pm line 11.
BEGIN failed--compilation aborted at lib/MusicBrainz/Server/Data/Utils.pm line 11.
Compilation failed in require at lib/MusicBrainz/Server/Controller/JS.pm line 3.
BEGIN failed--compilation aborted at lib/MusicBrainz/Server/Controller/JS.pm line 3.
Compilation failed in require at local/lib/perl5/Catalyst/Utils.pm line 306.
Compilation failed in require at /home/nikki/musicbrainz-server/app.psgi line 21.
BEGIN failed--compilation aborted at /home/nikki/musicbrainz-server/app.psgi line 21.

which was also reported in http://forums.musicbrainz.org/viewtopic.php?id=4168 but unlike that thread, carton install Math::Random::Secure doesn't help.