I installed version 3.28.1-0ubuntu3 of gnome-session-bin gnome-session-common and ubuntu-session from bionic-proposed, and the problem went away.
(When I upgraded from 16.04 to 18.04, do-release-upgrade stopped with an error, so I did the rest of the upgrade manually.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720310 Title: unity-gnome-shell-migration.18.08.py crashed with signal 5 in g_object_new_valist() due to gnome-shell-extension-ubuntu-dock not installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1720310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
