Same error showed up here, with freshly installed Gutsy, trying to upgrade to Hardy. I looked up the software sources in the menu, found none checked in: after changing that fact and running update-manager again, the upgrade started smoothly.
-- [dist-upgrader] A unresolvable problem occured while calculating the upgrade. https://bugs.launchpad.net/bugs/46245 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs