" N: Ignoring file ‘ros-latest.list’ in directory ‘/etc/apt/sources.list.d/’ as it has an invalid filename extenstion "
The above error occurs. What is the solution? I tried uninstalling it, but it says that the file does not exist. help!

So you installed the arm64 ROS to met this issue?
I’m not sure what have been installed on your device previously to cause this issue, I can only suggest to do reflash on your devcie to get it clean, then do the ROS installation.

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