its not happen coz there are missed files on many part of my system. and i know this form anther bug
-- Could not calculate the upgrade https://bugs.launchpad.net/bugs/87761 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
