*** This bug is a duplicate of bug 1510841 *** https://bugs.launchpad.net/bugs/1510841
You seem to have two desktop metapackages installed which creates a difficult situation for the release upgrader. 2016-09-09 21:39:36,763 DEBUG MetaPkgs: kubuntu-desktop ubuntu-desktop ... 2016-09-09 21:40:16,010 DEBUG Marking 'ubuntu-desktop' for upgrade 2016-09-09 21:40:16,156 DEBUG Marking 'kubuntu-desktop' for upgrade 2016-09-09 21:40:16,647 DEBUG metapkg 'ubuntu-desktop' installed but marked_delete 2016-09-09 21:40:16,647 DEBUG metapkg 'ubuntu-desktop' installed but marked_delete 2016-09-09 21:40:16,713 DEBUG blacklist expr 'ubuntu-desktop$' matches 'ubuntu-desktop' 2016-09-09 21:40:16,713 DEBUG The package 'ubuntu-desktop' is marked for removal but it's in the removal blacklist 2016-09-09 21:40:16,782 ERROR Dist-upgrade failed: 'The package 'ubuntu-desktop' is marked for removal but it is in the removal blacklist.' Please try removing one and then upgrading. ** This bug has been marked a duplicate of bug 1510841 "Could not calculate the upgrade" due to multiple metapackages being installed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1622076 Title: Trying to upgrade from 14 to xenial, keeps crashing due to "3rd party"? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1622076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs