I hit this too in a manual apt-get upgrade. Console showed me the following error:
Setting up update-notifier-common (3.168.4) ... Traceback (most recent call last): File "/usr/lib/update-notifier/package-data-downloader", line 24, in <module> import debian.deb822 File "/usr/lib/python3/dist-packages/debian/deb822.py", line 38, in <module> import chardet ImportError: No module named 'chardet' dpkg: error processing package update-notifier-common (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of update-notifier: update-notifier depends on update-notifier-common (= 3.168.4); however: Package update-notifier-common is not configured yet. As a workaround installing chardet in Python3 using pip3 allowed the apt upgrade to complete. sudo pip3 install chardet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1683925 Title: package update-notifier-common 3.168.4 failed to install/upgrade: package update-notifier-common is not ready for configuration cannot configure (current status 'half-installed') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1683925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs