For some reason when I try to update my system with update manager, when I check for updates, I get this error. Any idea on a fix? Thanks!
The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct.
Failed to fetch http://ppa.launchpad.net/canonical-d...86/Packages.gz 404 Not Found
Some index files failed to download, they have been ignored, or old ones used instead.