@Vaibhav, I encounter the same problem in my application once. Add layout code. I think you are mistaken in the attributes Mapview Layout-width and Layout-Height.
Watch it ....
<com.google.android.maps.MapView android:id="@+id/mapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:enabled="true" android:clickable="true" android:apiKey="xxx" />
If you used a parent counter or instead of fill_parent, change this. Hope your error is resolved by this.
source share