please type the following in terminal and press enter so that we could have all the required info for this bug.
$ apport-collect 551305 -- ubuntu software center unknown error https://bugs.launchpad.net/bugs/551305 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
