rm: cannot remove `/usr/lib/libGL.so': No such file or directory
dpkg-divert: rename involves overwriting `/usr/lib/libGL.so.1.2' with
  different file `/usr/lib/nvidia/libGL.so.1.2.xlibmesa', not allowed
dpkg: error processing nvidia-glx (--purge):
 subprocess post-removal script returned error exit status 2
Errors were encountered while processing:
 nvidia-glx