I'm getting this error when I try to reload Synaptic, I installed apps in terminal via ppa's I found on launchpad.net and dep files from other developer sites...
Could not download all repository indexes
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 dl.google.com/linux/deb/dists/stable/Release Unable to find expected entry 'non-free/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)
Failed to fetch ppa.launchpad.net/apt-fast/stable/ubuntu/dists/trusty/main/source/Sources 404 Not Found
Failed to fetch ppa.launchpad.net/apt-fast/stable/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
Failed to fetch ppa.launchpad.net/apt-fast/stable/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found
Failed to fetch ppa.launchpad.net/nanny/ppa/ubuntu/dists/trusty/main/source/Sources 404 Not Found
Failed to fetch ppa.launchpad.net/nanny/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
Failed to fetch ppa.launchpad.net/nanny/ppa/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found
Failed to fetch ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/trusty/main/source/Sources 404 Not Found
Failed to fetch ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
Failed to fetch ppa.launchpad.net/stebbins/handbrake-releases/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found
Some index files failed to download. They have been ignored, or old ones used instead.
Someone suggested I edit /etc/apt/sources.list
When I open it up all I see is the normal ubuntu ppa's