Got that error message while trying to upgrade from a fresh gutsy installation (with all patches) to hardy.
A unresolvable problem occurred while calculating the upgrade. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu If none of this applies, then please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bugreport. I'm attaching my /var/log/dist-upgrade/apt.log . ** Attachment added: "apt.log" http://launchpadlibrarian.net/13093405/apt.log -- [Hardy] update-manager could not calculate the upgrade due to openoffice.org-l10n-en-gb https://bugs.launchpad.net/bugs/181762 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