Setting up xserver-common-lts-raring (3:5) ...
Removing 'diversion of /usr/lib/xorg/protocol.txt to /usr/lib/xorg/protocol-precise.txt by xserver-common-lts-raring'
dpkg-divert: error: rename involves overwriting `/usr/lib/xorg/protocol.txt' with
  different file `/usr/lib/xorg/protocol-precise.txt', not allowed
dpkg: error processing package xserver-common-lts-raring (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 xserver-common-lts-raring
E: Sub-process /usr/bin/dpkg returned an error code (1)