相关疑难解决方法(0)

一直致力于通过生成的项目create-react-native-app.已成功使用该项目一段时间了,但现在尝试通过测试应用程序exp start --tunnel,突然看到错误(虽然以前工作)的形式:

[22:08:19] /path/to/node_modules/react-native-scripts/build/bin/crna-entry.js: Plugin/Preset files are not allowed to export objects, only functions. In /path/to/node_modules/babel-preset-expo/index.js
[22:08:19] Failed building JavaScript bundle.

已经看到一些似乎处理问题的帖子(https://github.com/babel/babel/issues/6808和Babel Plugin/Preset文件不允许导出对象,只有函数),但我完全是新的反应- 什么都没有完全得到什么bable,所以我很难理解如何将这些帖子应用到我自己的情况.

我的.bablerc文件(因为它似乎与其他帖子相关)是:

{
  "presets": ["babel-preset-expo"],
  "env": {
    "development": {
      "plugins": ["transform-react-jsx-source"]
    }
  }
}

尝试npm cache clean --force && rm -rf node_modules && rm -f package-lock.json && npm install过没有变化.似乎有帮助的是从react-native@0.56降级到0.55(正如这里所支持的:创建React Native App. - 插件/预设文件不允许导出对象,只有函数),但这似乎没有解决问题直接和更多的解决方法.任何关于应该在这里做什么的建议都会受到赞赏(应该包括哪些其他文件来帮助调试？).

**响应此问题被标记为Create React Native App …

在尝试使用Webpack4和Babel7构建反应应用程序时,我遇到了以下错误.

./src/index.js中的错误模块构建失败(来自./node_modules/babel-loader/lib/index.js):错误:无法从'/ Users/me/Desktop /找到模块'babel-preset-react' reflask' - 如果你想解决"反应",请使用"module:react" - 你的意思是"@ babel/react"吗？at function.module.exports [as sync](/Users/me/Desktop/reflask/node_modules/resolve/lib/sync.js:43:15)at resolveStandardizedName(/ Users/me/Desktop/reflask/node_modules/@ babel /core/lib/config/files/plugins.js:101:31)在resolvePreset(/Users/me/Desktop/reflask/node_modules/@babel/core/lib/config/files/plugins.js:58:10) at createPreset(/Users/me/Desktop/reflask/node_modules/@babel/core/lib/config/files/plugins.js:77:20)at createDescriptor(/ Users/me/Desktop/reflask/node_modules/@ babel/core/lib/config/config-descriptors.js:154:9)items.map(/Users/me/Desktop/reflask/node_modules/@babel/core/lib/config/config-descriptors.js:109:50 )在createPresetDescriptors(/ Users/me/Desktop /)的createDescriptors(/Users/me/Desktop/reflask/node_modules/@babel/core/lib/config/config-descriptors.js:109:29)的Array.map()处reflask/node_modules/@babel/core/lib/config/config-descriptors.js:101:10)在passPerPreset(/ Users/me/Desktop/reflask/node_modules/@ babel/core/lib/config/config-descriptors. JS:58:96)@ multi(webpack)-dev-server/client？http:// localhost:8080 ./src main [1]

我已尝试删除node_modules文件夹并使用以下内容重新安装依赖项.

终奌站

rm -rf node_modules/
npm install

组态

的package.json

{
  "name": "reflask",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "webpack-dev-server --open --mode development",
    "build": "webpack"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.1.0",
    "@babel/preset-env": "^7.1.0",
    "@babel/preset-react": "^7.0.0",
    "babel-loader": "^8.0.2",
    "html-loader": "^0.5.5", …