Super expression must either be null or a function, not undefined

Posted 2020-09-26 KEEP

按照之前买的用javascript开发移动应用的例子来编写的，然后报了这个错。我的头部声明是这样的

var React = require(‘react-native‘);
var {
Text,
View
} = React;

经过查询后是由于‘React‘和‘Component‘从‘react native‘分离到了‘react‘模块。
所以这里我们只引入‘react native‘的模块是不够的，改成这样：

import React, { Component } from ‘react‘;
import {
AppRegistry,
StyleSheet,
Text,
View
} from ‘react-native‘;