Ok, I am using ubuntu studio, thus I had discodos even if I not use it. I was with full broken apt and thus I could not even purge discodos
Then I used sudo dpkg -l | grep '^rc' | awk '{print $2}' | xargs dpkg --purge discodos If it's says it's need superuser even if you are using sudo Sudo su It will open the superuser terminal, use sudo dpkg -l | grep '^rc' | awk '{print $2}' | xargs dpkg --purge dicodos And then close the terminal, for safety reasons -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928414 Title: Ubuntu 21.04 mono-devel_6.8.0.105+dfsg-3_all.deb install failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/discodos/+bug/1928414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs