After further investigation I've discovered this is actually due to the wine packages you have installed with version 5.0.1~bionic. If you remove those you should be able to upgrade to the next release of Ubuntu.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886071 Title: Failed to calculate the system update Ubuntu 18.04.4 to 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1886071/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
