Reactnative——安装React Navigation后无法运行项目

运行

npm install --save react-navigation

后，运行

react-native run-android

报

解决方法：

1、react-native init NavTest (The cli is locally installed with this command)
2、deleted package-lock.json
3、npm install --save react-navigation
4、deleted the generated package-lock.json
5、npm install
6、react-native run android A little ugly, I don't know entirely what happened, but this worked. https://reactnavigation.org/ for sample code to run.

Or Copy this to index.android.js

import React, { Component } from 'react';
import {
  AppRegistry,
  Button,
} from 'react-native';
import {
  StackNavigator,
} from 'react-navigation';

class HomeScreen extends Component {
  static navigationOptions = {
    title: 'Welcome',
  };
  render() {
    const { navigate } = this.props.navigation;
    return (
      <Button
        title="Go to Jane's profile"
        onPress={() =>
          navigate('Profile', { name: 'Jane' })
        }
      />
    );
  }
}

class ProfileScreen extends Component{
  static navigationOptions = {
    title: 'Jane',
  };
  render() {
    return (null);
  }
}

const NavTest= StackNavigator({
  Home: { screen: HomeScreen },
  Profile: { screen: ProfileScreen },
});

AppRegistry.registerComponent('NavTest', () => NavTest);