I am using Ubuntu 16.04. Following error is coming while updating through Software Updater.
The repository 'http://download.opensuse.org/repositories/home:/sarimkhan/xUbuntu_14.04 ./ Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://download.opensuse.org/repositories/home:/sarimkhan/xUbuntu_14.04/./Packages 404 Not Found [IP: 195.135.221.134 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
How to solve this?