Some of the packages could not be retrieved from the server(s).
Do you want to continue, ignoring these packages?
I have tried changing the server under software sources, but it appears that the problem is not from the mint servers but from ubuntu:
E: Unable to correct missing packages
W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/ ... 10_all.deb
404 Not Found [IP: 22.214.171.124 80]
Any suggestions? Thanks!