The reported error is fixed by changing the line 814 In file /usr/bin /unattended-upgrade
subject = _("unattended-upgrades result for '%s': '%s'") % ( host(), res) into subject = _("unattended-upgrades result for '{}': '{}'").format( host(), res) Unfortunately the % formating is used in many places and changing this line doesn't definitely fix the problem with unattended-updates. Worse. Every time unattended-upgrades tries to upgrade packages I end up with a broken package. I need to use synaptic to fix the broken package. Not sure if it is properly fixed. Could someone please fix this issue ? This means people don't get their packages automatically upgraded. Doing it manually fails because of the broken package. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1527106 Title: Fatal exception failure of unattended-upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1527106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs