Super expression must either be

勤做笔记，方便自己，帮助他人。

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

或者错误：Uncaught (in promise) TypeError: Super expression must either be null or a function

一般是 React.Component 的引用和书写错误。

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