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Error messages like this usually indicates that the file in question (/usr/share/mime/packages/qlcplus.xml) is present in two packages, so one is preventing the other from being installed. When comparing https://packages.ubuntu.com/focal/amd64/qlcplus/filelist and https://packages.ubuntu.com/focal/all/qlcplus-data/filelist that doesn't seem to be the case though... I also tried to install `qlcplus` on my 20.04 system, but didn't get the error message. Note that I installed 4.12.2-2build1, which is slightly newer than 4.12.2. I was a bit puzzled why you had an older version number, untill I saw you seem to have installed from the Ubuntu 20.04 LTS Beta release. Could you please run `sudo apt update` or similar and apply any upgrades. It might have tried to fetch and install the older version, though updating the system should resolve that. If the problem persits, please attach the output of `apt policy qlcplus*` (will tell us which versions are installed and available) as well as any other error messages occuring. ** Changed in: qlcplus (Ubuntu) Status: New => Incomplete ** Tags added: package-conflict -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882414 Title: package qlcplus-data (not installed) failed to install/upgrade: Versuch, »/usr/share/mime/packages/qlcplus.xml« zu überschreiben, welches auch in Paket qlcplus 4.12.2 ist To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qlcplus/+bug/1882414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs