I was able to recreate the upgrade failure by installing the following packages:
python-pyqt5.qtwebchannel python-pyqt5.qtsensors-dbg python-pyqt5.qtopengl-dbg I'm not sure if all three are required if a subset will also produce the error. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1887544 Title: can not upgrade from 18.04 to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1887544/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
