使用 expo-image-picker 时出错：TypeError: undefined is not an object (evalating \'_expoModulesCore.NativeModulesProxy.ExponentImagePicker\')答案

【问题标题】：error while using expo-image-picker:TypeError: undefined is not an object (evaluating '_expoModulesCore.NativeModulesProxy.ExponentImagePicker')使用 expo-image-picker 时出错：TypeError: undefined is not an object (evalating \'_expoModulesCore.NativeModulesProxy.ExponentImagePicker\')
【发布时间】：2022-09-25 13:21:54
【问题描述】：

我正在使用 expo-image-picker 我正面临这个
错误：需要模块 \"node_modules\\expo-image-picker\\build\\ImagePicker.js\"，引发异常：TypeError: undefined is not an object (evaluating \'_expoModulesCore.NativeModulesProxy.ExponentImagePicker\')

这是我的代码。

import * as ImagePicker from \'expo-image-picker\'

;(async () => {
      let pickerResult = await ImagePicker.launchImageLibraryAsync({
        mediaTypes: ImagePicker.MediaTypeOptions.Images,
        base64: true,
        aspect: [4, 3],
        quality: 0.5,
      })

      if (pickerResult.cancelled === true) {
        return
      }
      let locaUri = pickerResult.uri
      //console.log(pickerResult.base64)
      let image: string = pickerResult.base64!

    })()

启动应用程序时出现错误

标签： typescript react-native expo

【解决方案1】：

这可能是由于 expo 尚未发现软件包，即使已安装现在在您的 node_modules 中打开目录，注意可能是您的终端重新加载。一旦你拿到文件，

“node_modules\expo-image-picker\build\ImagePicker.js” 保存。如果错误从控制台消失它会起作用的

import * as ImagePicker from 'expo-image-picker';


const openGallary  =async () => {
    // No permissions request is necessary for launching the image library
    let result = await ImagePicker.launchImageLibraryAsync({
      mediaTypes: ImagePicker.MediaTypeOptions.All,
      allowsEditing: true,
      aspect: [4, 3],
      quality: 1,
    });

    console.log(result);

    if (!result.cancelled) {
      setImage(result.uri);
    }
  
}

这就是我所做的，它对我有用

【讨论】：