DNS cause my LibreOfice compilation failed.

I manage to resolve the connection error happened on last week, that was due to my local Internet Service Provider DNS problem. I have the problem resolved by switching to Google DNS. To do this, amend the file located at /etc/resolvconf/resolv.conf.d/head, add nameserver 8.8.8.8 and nameserver 8.8.4.4 at the end of the file. Please note that is only applicable to Ubuntu 12.10, never add DNS in /etc/network/interfaces as I been told that the path has already obsolete after to version 12.