I think it happens when you are upgrading your system while you are browsing through the software center.
-- software-center crashed with DatabaseError in _database_gen_postlist_iter() https://bugs.launchpad.net/bugs/451555 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
