
while I execute
react-native run-android, occur it.
So I solved it by adding
@OverRide
public boolean canOverrideExistingModule(){
return true;
}
in source code : react-native-Gank\node_modules\react-native-vector-icons\android\src\main\java\com\oblador\vectoricons\VectorIconsModule.java.
Hope someone can get answer about the problem.