changed sources to http://ftp.ticklers.org, as suggested to me and runs now
-- A unresolvable problem occurred while calculating the upgrade https://bugs.launchpad.net/bugs/154448 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
