React Native Navigation Component Route Issue

const MyNavigator = createStackNavigator({
  RouteNameOne: {
    screen: () => <HomeScreen/>
  },
  RouteNameTwo: {
    screen: () => <NewScreen/>
  }
}, {
  initialRouteName: 'RouteNameOne'
});

It will work.

I think the problem is with home.js since you aren't exporting it. Try this :

export default class Home extends Component { ... } 
^^^^^^^^^^^^^^

Add those or just add

 export default Home; 

at the end of the home.js file