Invariant Violation: The navigation prop is missing for this navigator

React Navigation 3.0 has a number of breaking changes including an explicit app container required for the root navigator.

In the past, any navigator could act as the navigation container at the top-level of your app because they were all wrapped in “navigation containers”. The navigation container, now known as an app container, is a higher-order-component that maintains the navigation state of your app and handles interacting with the outside world to turn linking events into navigation actions and so on.

In v2 and earlier, the containers in React Navigation are
automatically provided by the create*Navigator functions. As of v3,
you are required to use the container directly. In v3 we also renamed
createNavigationContainer to createAppContainer.

Also please note that if you are now using v4, navigators have been moved to a separate repo. You’ll now need to install and import from 'react-navigation-stack'. For example import { createStackNavigator } from 'react-navigation-stack' The solution below is for v3.

import {
  createStackNavigator,
  createAppContainer
} from 'react-navigation';
const MainNavigator = createStackNavigator({...});
const App = createAppContainer(MainNavigator);

A more comprehensive code example:

import {
      createStackNavigator,
      createAppContainer
    } from 'react-navigation';
import Login from './view/login.js'
import SignUp from './view/signup.js'

const RootStack = createStackNavigator({
    Home: {
      screen: Login
    },
    Signup: {
      screen: SignUp
    }
  });

const App = createAppContainer(RootStack);

export default App;