One possible way to generate this error may be to run 'sudo aptitude update' twice in quick succession in the same command prompt, when new upgrades are available -- and then run safe-update, where the error will manifest.
-- aptitude automatically beginning an upgrade without waiting for user consent https://bugs.launchpad.net/bugs/216692 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs