react-native - TypeError: _ExponentCameraManager__WEBPACK_IMPORTED_MODULE_13__ .default.requestPermissionsAsync 不是函数

Question

我正在开发一个 React Native 应用程序并尝试在 Web 上访问相机。但是在 Web 浏览器上运行应用程序时，所有屏幕都运行良好。

但在相机屏幕上，我收到此错误：

截屏：

错误：

TypeError: _ExponentCameraManager__WEBPACK_IMPORTED_MODULE_13__.default.requestPermissionsAsync is not a function

代码：

import React, { useState, useEffect } from 'react';
import { StyleSheet, Text, View, TouchableOpacity } from 'react-native';
import { Camera } from 'expo-camera';

export default function App() {
  const [hasPermission, setHasPermission] = useState(null);
  const [type, setType] = useState(Camera.Constants.Type.back);

  useEffect(() => {
    (async () => {
      const { status } = await Camera.requestPermissionsAsync();
      setHasPermission(status === 'granted');
    })();
  }, []);

  if (hasPermission === null) {
    return <View />;
  }
  if (hasPermission === false) {
    return <Text>No access to camera</Text>;
  }
  return (
    <View style={styles.container}>
      <Camera style={styles.camera} type={type}>
        <View style={styles.buttonContainer}>
          <TouchableOpacity
            style={styles.button}
            onPress={() => {
              setType(
                type === Camera.Constants.Type.back
                  ? Camera.Constants.Type.front
                  : Camera.Constants.Type.back
              );
            }}>
            <Text style={styles.text}> Flip </Text>
          </TouchableOpacity>
        </View>
      </Camera>
    </View>
  );
}