I upgraded from Ubuntu 17.10 to 18.04 and it failed in the process (because of cinnamon-common bug https://bugs.launchpad.net/ubuntu/+source/cinnamon/+bug/1759127, I think). I manage to have all packages upgraded in the end, although cinnamon fails to start (different issue, I would say, just letting you know as it could be the thing that made the crash dialog showed up later)...
When I logged in Gnome, I did some more upgrades, and I got a few appreport crashes dialogs, so I just submit the info it asked me too... -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gconf in Ubuntu. https://bugs.launchpad.net/bugs/1759681 Title: package gconf2 3.2.6-4ubuntu1 failed to install/upgrade: triggers looping, abandoned Status in gconf package in Ubuntu: Incomplete Bug description: Error report showed up after doing upgrade ProblemType: Package DistroRelease: Ubuntu 18.04 Package: gconf2 3.2.6-4ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 ApportVersion: 2.20.9-0ubuntu1 AptOrdering: NULL: ConfigurePending Architecture: amd64 Date: Tue Mar 27 22:17:52 2018 ErrorMessage: triggers looping, abandoned InstallationDate: Installed on 2011-02-12 (2601 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1 PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4 RelatedPackageVersions: dpkg 1.19.0.5ubuntu1 apt 1.6~beta1 SourcePackage: gconf Title: package gconf2 3.2.6-4ubuntu1 failed to install/upgrade: triggers looping, abandoned UpgradeStatus: Upgraded to bionic on 2018-03-27 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gconf/+bug/1759681/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp