Thanks for this additional information: Could you please run: $ apt-cache policy python-zodb python-zopeinterface
-- A unresolvable problem occurred while calculating the upgrade. https://bugs.launchpad.net/bugs/254014 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
