Update manager "invalid filename extension"

[Hillbilly H]

Is this anything to worry about?
" N: Ignoring file 'checkra1n.list.' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension "

 

[osprey]

If your filename is indeed what you have written in your post #1:

checkra1n.list.

then it will be the period at the end which invalidates the filename.

 

[Hillbilly H]

Thank you.