Use a terminal-based text editor like Nano to edit one of the files and either remove or comment the duplicate line.Read the error message and find out which line number of what files have the same entry.To summarize, here’s what you need to do: So, here in my case, I removed the third line of one of the file and it stopped showing the warning for me. You can see that it mentions the file name and the line number both. The fix is to read the error message (it’s a warning, actually) correctly and edit the file to remove (or comment out) duplicate lines. This could happen in the same file or in separate files. A repository was added to the list of sources twice. Since I know a few things about how the apt package manager, I can already see the issue. W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt//microsoft-edge-dev.list:3 and /etc/apt//microsoft-edge.list:3 The exact message after running sudo apt update command looked like this:ġ7 packages can be upgraded. Obviously the ppa isn't getting added to the sources list on this machine for some reason.Įdit: i wound up saying heck with it and installed it via command line according to instructions and now it appears to have added the ppa, but why wasn't it adding it automatically on mint 20.1 where as it does on mint 19.Recently, when I was updating Ubuntu via command line, I encountered a warning that complained about target package being configured multiple times. No active apt repos in: /etc/apt/sources.listĪctive apt repos in: /etc/apt//official-package-repositories.listġ: deb ulyssa main upstream import backport #id:linuxmint_mainĢ: deb focal main restricted universe multiverseģ: deb focal-updates main restricted universe multiverseĤ: deb focal-backports main restricted universe multiverseĥ: deb focal-security main restricted universe multiverse Code: Select all Kernel: 5.4.0-72-generic x86_64 bits: 64ĭesktop: Xfce 4.14.2 Distro: Linux Mint 20.1 Ulyssa

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