after the next run the command `apt-get update & & apt-get upgrade` I have no problems. therefore, we can say that this is a temporary problem and it is solved.
% date Fri Aug 24 12:51:08 UTC 2012 % sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: compiz compiz-core compiz-gnome compiz-plugins compiz-plugins-default gnome-control-center gnome-control-center-data gnome-settings-daemon libcompizconfig0 libdecoration0 metacity unity-lens-files 0 upgraded, 0 newly installed, 0 to remove and 12 not upgraded. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1040380 Title: package-data-downloader crashed with AttributeError in process_download_requests(): 'Deb822' object has no attribute 'has_key' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1040380/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs