Here are several related threads from support sites: https://askubuntu.com/questions/620137/do-release-upgrade-is-failing- silently-first-steps-to-troubleshoot
http://chiedi.ubuntu-it.org/questions/36248/ubuntu-software-center-non- parte https://askubuntu.com/questions/607063/ubuntu-software-center-is-not- working-on-14-10 (possibly the same problem) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1385689 Title: ubuntu-bug, software-center and update-manager crashing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/1385689/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
