I've been using elementary OS 0.3 Freya (64-bit) built on Ubuntu 14.04
When I tried to open Software Updater its showing Failed to download repository information and when I tried to run
sudo apt-get update
this is what it prints:
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty/Release Unable to find expected entry 'restricted/source/Sources' in Release file (Wrong sources.list entry or malformed file)
E: Some index files failed to download. They have been ignored, or old ones used instead.
I donno whats the problem and I cann't find a solution for this while I googled it.