React Native Invariant Violation: View config

The name of any component must be capitalized. In your name, the component "navigation" is not capitalized. It should be "Navigation".

In react native the component's name should begin with capital letter, so it will be:

const Navigation = StackNavigator({
    Home: { screen: HomeScreen },

});

and call it with capital:

export default class App extends Component<{}> {
  render() {
    return <Navigation/>;
  }
}