Android GoogleMap or SupportMapFragment - null pointer exception

Question

In my app i showing google map version2 in a fragment. but i get Null pointer exception at

mMap = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id

Answer 1

try to change this:

FragmentManager myFM = getActivity().getSupportFragmentManager();

final SupportMapFragment myMAPF = (SupportMapFragment) myFM
                .findFragmentById(R.id.map);