1. Check your Linux Mint version by running the following commands in Terminal. $ sudo cat /etc/issue $ sudo cat /etc/issue.net $ sudo cat /etc/lsb-release $ sudo cat /etc/os-release 2. Make sure you create a backup copy of your system sources. $ sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak $ sudo cp /etc/apt/sources.list.d/official-package-repositories.list /etc/apt/sources.list.d/official-package-repositories.list.bak…