when I open "software sources" to edit ,it ask me to reload ,and then i see some sources sites are unable to connect. So i delete those sites and it works . Poor English ,at last!
** Changed in: update-manager (Ubuntu) Status: Invalid => Confirmed -- the update manager ask me to do this !!! https://bugs.launchpad.net/bugs/180081 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