I am Using Linux Mint 17.I try to run this command:sudo apt-get updateBut I am getting the following error: W: Failed to fetch  file:/var/cache/apt-build/repository/dists/apt-build/main/binary-i386/Packages  File not foundE: Some index files failed to download. They have been ignored, or old  ones used instead.How can I solve this error?
Error in : sudo apt-get update
linux mint;apt
edit the contents of: /etc/apt/sources.list.d/apt-build.list From: deb file:/var/cache/apt-build/repository apt-build main to: deb [arch=amd64] file:/var/cache/apt-build/repository apt-build main