(06-May-2020, 07:23 AM)ekpln Wrote:This repo looks weird. You may need to manually get into /etc/apt and look for this line and comment it out. It should be xenial and not debian.Code:Hit:5 https://www.lesbonscomptes.com/upmpdcli/downloads/debian stretch InRelease
Also, try and run
sudo apt install -f