N: Ignoring file 'yandex-browser.list.save.1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension N: Ignoring file 'yandex-browser.list.save.2' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension E: Type 'andex.ru/yandex-browser/deb' is not known on line 1 in source list /etc/apt/sources.list.d/yandex-browser.list E: The list of sources could not be read.
How can I fix this?
Here is Solutions:
We have many solutions to this problem, But we recommend you to use the first solution because it is tested & true solution that will 100% work for you.
Run in terminal
sudo rm /etc/apt/sources.list.d/yandex-browser*
and the problem should be fixed.
Some script or you corrupted some sources.list files while installing Yandex Browser.
Note: Use and implement solution 1 because this method fully tested our system.
Thank you 🙂