Looking at the log files it seems that you are running a version of unity from a PPA and this is causing upgrade issues.
Investigating (0) unity [ amd64 ] < 7.1.3+minimize5 > ( gnome ) This is where the package was built: https://launchpad.net/~zxcq14/+archive/minimize-unity-7/+build/5796557 You'll want to use the standard version of unity for the release upgrader to work. ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1291283 Title: Bug in Ubuntu-release-upgrader-core To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1291283/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
