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yarn add -D webpack@4.43.0

plugins: [
  // // split vendor js into its own file
  // new webpack.optimize.CommonsChunkPlugin({
  //   name: 'vendor',
  // }),
  // // extract webpack runtime and module manifest to its own file in order to
  // // prevent vendor hash from being updated whenever app bundle is updated
  // new webpack.optimize.CommonsChunkPlugin({
  //   name: 'manifest',
  //   minChunks: Infinity,
  // }),
  // // This instance extracts shared chunks from code splitted chunks and bundles them
  // // in a separate chunk, similar to the vendor chunk
  // // see: https://webpack.js.org/plugins/commons-chunk-plugin/#extra-async-commons-chunk
  // new webpack.optimize.CommonsChunkPlugin({
  //   name: 'app',
  //   async: 'vendor-async',
  //   children: true,
  //   minChunks: 3,
  // }),
];

// https://stackoverflow.com/questions/49942558/deprecationwarning-tapable-plugin-is-deprecated-use-new-api-on-hooks-instea
// error
Tapable.apply is deprecated. Call apply on the plugin directly instead

yarn add -D html-webpack-plugin@latest

// const ExtractTextPlugin = require('extract-text-webpack-plugin');
// plugins:[
// extract css into its own file
// new ExtractTextPlugin({
//   filename: utils.assetsPath('css/[name].[contenthash].css'),
//   // Setting the following option to `false` will not extract CSS from codesplit chunks.
//   // Their CSS will instead be inserted dynamically with style-loader when the codesplit chunk has been loaded by
//   // webpack. It's currently set to `true` because we are seeing that sourcemaps are included in the codesplit
//   // bundle as well when it's `false`, increasing file size: https://github.com/vuejs-templates/webpack/issues/1110
//   allChunks: true,
// }),
// ]
// extract: true
// if (options.extract) {
//   return ExtractTextPlugin.extract({
//     use: loaders,
//     fallback: 'vue-style-loader',
//   });
// }

yarn add -D mini-css-extract-plugin

// webpack.prod.conf.js
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
plugins: [
    new MiniCssExtractPlugin(filename: utils.assetsPath('css/[name].[contenthash].css'))
];

// webpack.base.conf.js
module.exports = {
  module: {
    rules: [
      {
        test: /\.(sa|sc|c)ss$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              hmr: process.env.NODE_ENV === "development",
            },
          },
          "css-loader",
          "postcss-loader",
          "sass-loader",
        ],
      },
    ],
  },
};

mode: "production";

yarn add -D vue-loader@latest

// https://github.com/symfony/webpack-encore/issues/311
You probably use vue-loader v15 which was released yesterday and introduces a lot of changes compared to v14. One of these changes is that you have to use an extra plugin: VueLoaderPlugin (that's not handled yet by Encore).
In the meantime could you try removing your version of the vue-loader/VueLoaderPlugin and adding vue-loader@^14.2.2 instead?

yarn add -D vue-loader@14.2.2

(1:1) Unknown word
> 1 | // extracted by mini-css-extract-plugin

// postcss: generateLoaders()

// https://www.cnblogs.com/wyliunan/p/10238717.html
Unhandled rejection Error: "dependency" is not a valid chunk sort mode

// webpack.config.js
module.exports = {
  performance: {
    hints: "warning",
    maxEntrypointSize: 5000 * 1024,
    maxAssetSize: 5000 * 1024,
  },
};

// https://webpack.js.org/configuration/optimization/#optimizationsplitchunks
// Éú³Émanifest.js
optimization: {
    runtimeChunk: {
        name:'manifest'
    }
},

// https://webpack.js.org/plugins/split-chunks-plugin/#split-chunks-example-1
// Éú³É vendors.js
optimization: {
  splitChunks: {
    cacheGroups: {
      commons: {
        test: /[\\/]node_modules[\\/]/,
        name: 'vendors',
        chunks: 'all',
      },
    },
  },
}

  output: {
-   chunkFilename: utils.assetsPath('js/[id].[chunkhash].js'),
+   chunkFilename: utils.assetsPath('js/[name].[chunkhash].js'),
  },

Error: Cannot find module 'webpack/bin/config-yargs'
https://github.com/mzgoddard/jest-webpack/issues/27

"webpack-cli": "^2.1.3",
"webpack-dev-server": "^3.1.4"

mode: 'development',

// webpack Error: Callback was already called.
// https://github.com/webpack-contrib/mini-css-extract-plugin/issues/493
// webpack.dev.js
plugins:[
    new MiniCssExtractPlugin(),
]

// https://segmentfault.com/q/1010000012054980
// BaseClient.js:12 Uncaught TypeError: Cannot assign to read only property 'exports' of object '#<Object>'

yarn add -D transform-es2015-modules-commonjs

// .babelrc
"plugins": [
    "transform-es2015-modules-commonjs"
]

// package.json
scripts:{
  "build:analyse": "NODE_ENV=production source_map=false npm_config_report=true node build/build.js"
}

// webpack.prod.conf.js
if (config.build.bundleAnalyzerReport) {
  const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
  webpackConfig.plugins.push(new BundleAnalyzerPlugin());
}

sudo n v10.17.0

const TerserPlugin = require('terser-webpack-plugin');
module.exports = {
  optimization: {
    minimize: true,
    minimizer: [
      // Compress extracted CSS. We are using this plugin so that possible
      // duplicated CSS from different presentation can be deduped.
      new OptimizeCSSPlugin({
        cssProcessorOptions: config.build.productionSourceMap ? { safe: true, map: { inline: false } } : { safe: true },
      }),
      new TerserPlugin({
        cache: true,
        parallel: true,
        sourceMap: Boolean(config.build.productionSourceMap),
      }),
    ],
  }
}

optimization: {
  splitChunks: {
    chunks: 'async',
    minSize: 30000,
    maxSize: 0,
    minChunks: 1,
    maxAsyncRequests: 5,
    maxInitialRequests: 3,
    automaticNameDelimiter: '~',
    automaticNameMaxLength: 30,
  }
}

warning No parser and no filepath given, using 'babel' the parser now but this will throw an error in the future. Please specify a parser or a filepath so one can be inferred

  // plugins: [
  //   new HappyPack({
  //     id: 'happy-eslint-loader',
  //     threadPool: happyThreadPool,
  //     loaders: ['eslint-loader?cacheDirectory=true'],
  //   }),
  //   new HappyPack({
  //     id: 'happy-vue-loader',
  //     threadPool: happyThreadPool,
  //     loaders: ['vue-loader?cacheDirectory=true'],
  //   }),
  //   new HappyPack({
  //     id: 'happy-babel-loader',
  //     threadPool: happyThreadPool,
  //     loaders: ['babel-loader?cacheDirectory=true'],
  //   }),
  // ]

rules: [
  {
    test: /\.(js|vue)$/,
    use: [
      { loader: 'thread-loader' },
      {
        loader: 'eslint-loader',
        options: {
          formatter: require('eslint-friendly-formatter'),
          emitWarning: !config.dev.showEslintErrorsInOverlay,
        },
      },
    ],
    enforce: 'pre',
    include: [resolve('src'), resolve('test')],
  },
  {
    test: /\.vue$/,
    use: ['thread-loader', 'vue-loader'],
    exclude: (file) => /node_modules/.test(file) && !/\.vue\.js/.test(file),
  },
  {
    test: /\.js$/,
    use: ['thread-loader', 'babel-loader'],
    include: [resolve('src'), resolve('test'), resolve('node_modules/webpack-dev-server/client')],
  },
  {
    test: /\.(sa|sc|c)ss$/,
    use: [
      {
        loader: process.env.NODE_ENV === 'development' ? 'vue-style-loader' : MiniCssExtractPlugin.loader,
        options: {
          hmr: process.env.NODE_ENV === 'development',
        },
      },
      'css-loader',
      'postcss-loader',
      'sass-loader',
    ],
  },
]

new MiniCssExtractPlugin({
  ignoreOrder: true,
}),

// webpack3
"webpack": "^3.6.0"
"webpack-dev-server": "^2.9.1"
"eslint-loader": "^1.7.1"
"vue-loader": "^13.3.0"
"happypack": "^5.0.0"
"html-webpack-plugin": "^2.30.1"
"extract-text-webpack-plugin": "^3.0.0"
"uglifyjs-webpack-plugin": "^1.1.1"

// webpack4
"webpack": "^4.43.0"
"webpack-cli": "^3.3.11"
"webpack-dev-server": "^3.7.2"
"thread-loader": "^2.1.3"
"eslint-loader": "^4.0.2"
"vue-loader": "^15.9.2"
"html-webpack-plugin": "^4.3.0"
"mini-css-extract-plugin": "^0.9.0"
"terser-webpack-plugin": "^3.0.1"
"babel-plugin-transform-es2015-modules-commonjs": "^6.26.2"