如何允许 reactnative 启用对 JSX(扩展)文件的支持

React本机应用无法解析组件.

我正在try 导入&amp；在App.js内渲染Test.jsx.

我得到以下错误-

error: bundling failed: Error: Unable to resolve module `./screens/Test` from App.js`:
The module `./screens/Test` could not be found from App.js. Indeed, none of these files exist

项目经理(或者更确切地说是文件)如下所示-

测试代码.js-

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

export default class Test extends Component {
    render() {
      return (
        <View style={styles.container}>
          <Text>Hello World?</Text>
        </View>
      );
    }
  }


const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  }
});

应用程序代码.js-

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

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

import Test from "./screens/Test";

const instructions = Platform.select({
  ios: 'Press Cmd+R to reload,\n' +
    'Cmd+D or shake for dev menu',
  android: 'Double tap R on your keyboard to reload,\n' +
    'Shake or press menu button for dev menu',
});

type Props = {};
export default class App extends Component<Props> {
  render() {
    return (
      <View style={styles.container}>
        <Test />
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});

我已经try 了上面提到的每一个解决方案——react-native#4968个，但它们似乎都不起作用.

我看了更多的问题，所以不知道我还需要做什么.我还创建了一个新项目(截图和代码来自新项目).

我错过了什么？

UPDATE: