I have the same error to. Here my logs from /var/log/dist-upgrade.
** Attachment added: "main.log" http://launchpadlibrarian.net/26555762/main.log -- Can't install 'kubuntu-desktop' https://bugs.launchpad.net/bugs/221700 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs