Question

我正在基于Symfony4和ReactJS编写应用程序，并且正在使用Webpack Encore构建捆绑包。此外，node_modules目录在项目外部并且是符号链接的-可能是主要的罪魁祸首，但是我需要将node_modules保留在项目目录之外。

我遇到的问题与使用一些由React组件/ HOC组成的npm软件包（例如@foes/react-i18n-routing）有关，因此需要对其进行编译，但是babel不这样做，结果我得到与此类似的错误：

error  in ./node_modules/@foes/react-i18n-routing/dist/esm/component/withI18nRouting.js

Module parse failed: Unexpected token (6:2)
You may need an appropriate loader to handle this file type.
|
| export default Component => props => (
>   <I18nRoutingContext.Consumer>{context => <Component i18nRouting={context} {...props} />}</I18nRoutingContext.Consumer>
| );

据我所知，当我使用Babel 7时，我需要将.babelrc文件更改为babel.config.js以提供广泛的项目配置，但这还不够，我仍然面对这个问题。

有人能给我指出正确的方向吗？

我尝试了各种配置，但我停止设置babelrcRoots。也许这是关键，但是我无法正确设置它。

这是目录结构：

ROOT/
├── node_modules/
└── project/
    ├── assets/
    ├── package.json
    ├── babel.config.js
    └── webpack.config.js

这里是babel.config.js

module.exports = function(api) {
  api.cache(true);

  const presets = ['@babel/preset-env', '@babel/preset-react'];
  const plugins = [
    '@babel/plugin-proposal-class-properties',
    'transform-es2015-modules-commonjs',
    'babel-plugin-dynamic-import-node'
  ];

  // const babelrcRoots = ['.', '../node_modules/*']; ????

  return {
    presets,
    plugins
  };
};

这是webpack.config.js

const Encore = require('@symfony/webpack-encore');
const path = require('path');

Encore
  .setOutputPath('public/build/')
  .setPublicPath('/build')
  .addEntry('app', './assets/js/app.jsx')
  .splitEntryChunks()
  .enableSingleRuntimeChunk()
  .cleanupOutputBeforeBuild()
  .enableBuildNotifications()
  .enableSourceMaps(!Encore.isProduction())
  .enableVersioning(Encore.isProduction())
  .enableLessLoader()
  .enableReactPreset();


let config = Encore.getWebpackConfig();
config.resolve.alias['App'] = path.resolve(__dirname, 'assets/js');
// config.resolve.modules = [path.resolve('./node_modules'), path.resolve('../node_modules')]; here's the another try with no luck

module.exports = config;

这是package.json

{
  "devDependencies": {
    "@babel/preset-react": "^7.0.0",
    "@symfony/webpack-encore": "^0.27.0",
    "babel-plugin-dynamic-import-node": "^2.2.0",
    "babel-polyfill": "^6.26.0",
    "babel-preset-env": "^1.7.0",
    "babel-preset-react": "^6.24.1",
    "core-js": "^3.0.0",
    "less-loader": "^4.1.0",
    "prop-types": "^15.7.2",
    "webpack-notifier": "^1.6.0"
  },
  "dependencies": {
    "@babel/plugin-proposal-class-properties": "^7.4.4",
    "@foes/react-i18n-routing": "^0.8.0",
    "enzyme": "^3.9.0",
    "enzyme-adapter-react-16": "^1.12.1",
    "history": "^4.9.0",
    "lodash.flatmap": "^4.5.0",
    "react": "^16.8.6",
    "react-dom": "^16.8.6",
    "react-router-dom": "^5.0.0",
    "react-router-named-routes": "0.0.23"
  }
}

Answer 1

您可以尝试将here中提到的rootMode:"upward"设置为：

babel --root-mode upward src -d lib

或在webpack中

module: {
        rules: [{
            loader: "babel-loader",
            options: {
                rootMode: "upward",
            }
        }]
    }

Babel不会编译项目目录外部的node_modules（7）

1 个答案: