title: Google's SupportMapFragment type cast exception with v4 Fragment
body: <p><strong>Inconvertible types; cannot cast 'android.support.v4.app.Fragment' to 'com.google.android.gms.maps.SupportMapFragment'</strong></p>
  
  <p>I created fresh project for google map integration, there also (first tried in ongoing project) the same type cast exception in editor. Have seen many other similar question, but those were for type cast exception for android.app.Fragment with SupportMapFragment and even their accepted answer were to use android.support.v4.app.Fragment with SupportMapFragment to resolve error, but in my case, the same is giving me an error. (So this might seem duplicate but contrary it's not.). Please suggest solution for this.</p>