Stacknavigation null不是对象

时间:2019-02-11 16:58:32

标签: react-native

我正在尝试使用Stack导航,我遵循了文档,但是它始终抛出:“空不是对象”错误,我不明白是什么问题。我看过的所有代码基本上都与此代码相同,我是否缺少某些内容?

App.js文件:

import {Platform, StyleSheet, Text, View} from 'react-native';
import {
  createStackNavigator, createAppContainer
} from 'react-navigation';

import TabNavigation from './Navigation/TabNavigation';
import LoginScreen from './Screens/LoginScreen';
import InterventionScreen from './Screens/InterventionsScreen'

const RootStack = createStackNavigator(
  {
    LoginScreen: {
      screen: LoginScreen
    },
    TabNavigation: {
      screen: TabNavigation
    }
  },
  {
    initialRouteName: 'LoginScreen',
  }
);

const MyApp = createAppContainer(RootStack);

export default MyApp;

import React from 'react';
import {
      StyleSheet,
      View,
      Text,
} from 'react-native';

export default class InterventionsScreen extends React.Component {

  render() {
    return(
      <View style={styles.container}>
        <Text> Navigation </Text>
      </View>
    );
  }
}

我关注了该文档,但该文档不起作用,确切的错误是: null不是对象(评估'RNGestureHandlerModule.State')

0 个答案:

没有答案