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我已经配置了 webpack@5.10.0（带有 webpack-cli@4.2.0）以使用 html-webpack-plugin（加上 file-loader@6.2.0 和 sass-loader@10.1.0）：

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const postcssPresetEnv = require('postcss-preset-env');

module.exports = {
  entry: {
    index: './src/index.js',
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: './src/index.html',
    }),
    new MiniCssExtractPlugin({
      filename: '[name].css',
    }),
  ],
  output: {
    publicPath: './',
    filename: '[name].js',
    path: path.resolve(__dirname, 'dist'),
  },
  module: {
    rules: [
      {
        test: /\.s?css$/i,
        use: [
          { loader: MiniCssExtractPlugin.loader },
          'css-loader',
          { 
            loader: 'postcss-loader',
            options: {
              ident: 'postcss',
              plugins: () => [
                postcssPresetEnv(/* pluginOptions */)
              ]
            }
          },
          'sass-loader',
        ],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        loader: 'file-loader',
      },
    ],
  },
};

到那时，一切正常（style.scss被导入index.js，样式表本身加载 2 jpgs background-image: url(...)）。

现在，我的 html 模板 ( index.html) 引用了一个文件 ( <img src="./file.svg">)，该文件 ( ) 被复制（通过file-loader，使用另一个名称）。但是决赛的参考index.html必须反映这种变化。

所以我安装了html-loader@1.3.2：

  [...]
  module: {
    rules: [
      {
        test: /\.html$/i,
        loader: 'html-loader',
      },
  [...]

现在npx webpack build在没有进一步说明的情况下崩溃：

[webpack-cli] Compilation finished
assets by status 84 KiB [cached] 2 assets
./src/index.js 26 bytes [built] [code generated]
1 ERROR in child compilations
webpack 5.10.0 compiled with 1 error in 867 ms
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

怎么办？如何获取调试信息？出了什么问题？


$ npm list

a@1.0.0 /home/rslemos/workspace/a/webpack
├── clean-webpack-plugin@3.0.0
├── css-loader@5.0.1
├── file-loader@6.2.0
├── html-loader@1.3.2
├── html-webpack-plugin@4.5.0
├── lodash@4.17.20
├── mini-css-extract-plugin@1.3.2
├── node-sass@5.0.0
├── postcss-loader@3.0.0
├── postcss-preset-env@6.7.0
├── sass-loader@10.1.0
├── sass@1.30.0
├── style-loader@2.0.0
├── webpack-cli@4.2.0
└── webpack@5.10.0
4

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