thank you for your bug report, the issue is the same as bug #1720310 and because gnome-shell-extension-ubuntu-dock is not installed
** Information type changed from Private to Public ** Changed in: gnome-session (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1753485 Title: unity-gnome-shell-migration.17.10.py crashed with signal 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1753485/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs