In the Traceback we can see the following: SystemError: E:dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
Have you tried running the suggested command? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1444612 Title: do-release-upgrade crashed with TypeError in __init__(): wait_for_child() takes 1 positional argument but 2 were given To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1444612/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
