Thank you. That did the trick. I have re-enabled all non-Canonical repositories and performed another update, and no Unity upgrades were available.
I believe this problem arose due to a restoration of PPAs from Oneiric to Precise and although I have removed the relevant PPA, it had by then installed the bzr build of Unity. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996654 Title: Unity 5.12 not loading after upgrade (compiz/libunityshell.so: undefined symbol: _ZNK5unity4dash10Controller6windowEv) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/996654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
