I had almost exactly the same as Maketsi (comment 22) just now in my upgrade from 16.04 to 16.10, with the one difference that my gconf2 is a newer version than theirs and mine is set to manually installed (not sure why). Same experience as hackel (comment 24) too, in that I rebooted (although upgrader had crashed and didn't tell me to reboot, so I wasn't even sure if it was stable enough to reboot) and everything is apparently up to date and stable.
# sudo apt upgrade gconf2 [sudo] password for michael: Reading package lists... Done Building dependency tree Reading state information... Done gconf2 is already the newest version (3.2.6-3ubuntu7). gconf2 set to manually installed. Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gconf in Ubuntu. https://bugs.launchpad.net/bugs/1551623 Title: package gconf2 3.2.6-3ubuntu6 failed to install/upgrade: dependency problems - leaving triggers unprocessed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gconf/+bug/1551623/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs