Ubuntu 20.04 ships with Python 3.8, which Deluge doesn't seem to play well with. If you update python3 to point to Python 3.7, it should start up fine.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876955 Title: On start Deluge shows the message "Only thin mode is available due to unknown import Error. To use Standalone mode, please see logs for error details." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/deluge/+bug/1876955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs