ruby-on-rails - 设置 Material UI 套件 React 时，Sass-Loader 的模块构建失败

问题描述

我的环境 我有一个使用 React Native 的 RoR 应用程序设置。我使用 rails server 和 webpack 作为我的开发环境。

尝试添加 UI 库我将文档中需要的材料 ui 文件添加到我的 ReactJS 应用程序中。

我的问题 在将 Material UI 文件添加到我的根 ReactJS 文件夹后运行我的应用程序时

编译时出现以下错误：

根据此错误，Resolve-url-loader 设置不正确

WARNING in ./app/javascript/components/assets/scss/material-kit-react.scss (./node_modules/css-loader/dist/cjs.js??ref--7-1!./node_modules/postcss-loader/src??ref--7-2!./node_modules/resolve-url-loader??ref--7-3!./node_modules/sass-loader/lib/loader.js??ref--7-4!./app/javascript/components/assets/scss/material-kit-react.scss)
Module Warning (from ./node_modules/resolve-url-loader/index.js):
resolve-url-loader: loader misconfiguration
  "attempts" option is defunct (consider "join" option if search is needed)

错误的 resolve-url-loader 设置导致多米诺骨牌效应，理由是 sass/scss 不起作用。

ERROR in ./app/javascript/components/assets/scss/plugins/_plugin-react-datetime.scss (./node_modules/css-loader/dist/cjs.js??ref--7-1!./node_modules/postcss-loader/src??ref--7-2!./node_modules/resolve-url-loader??ref--7-3!./node_modules/sass-loader/lib/loader.js??ref--7-4!./app/javascript/components/assets/scss/plugins/_plugin-react-datetime.scss)
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

  border-color: $white-color !important;
               ^
      Undefined variable: "$white-color".
      in /home/ubuntu/workspace/backend/app/javascript/components/assets/scss/plugins/_plugin-react-datetime.scss (line 116, column 17)

我尝试将以下节点库添加到我的应用程序


"devDependencies": {
    "css-loader": "^2.1.1",
    "mini-css-extract-plugin": "^0.6.0",
    "node-sass": "^4.11.0",
    "resolve-url-loader": "^3.1.0",
    "sass-loader": "^7.1.0",
    "style-loader": "^0.23.1",
    "webpack": "^4.30.0",
    "webpack-cli": "^3.3.0",
    "webpack-dev-server": "^3.2.1"
  }

在我的主根文件夹中创建并配置了webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  entry: './src/styles.scss',

  mode: 'development',

  module: {
    rules: [
      {
        test: /\.(png|jpg|gif)$/,
        include: [
          path.resolve(__dirname, './static/img'),
        ],
        use: {
          loader: 'file-loader',
          options: {
            name: '[name]-[hash].[ext]',
          },
        },
      },
      {
        test: /\.svg$/,
        use: {
          loader: 'svg-inline-loader',
          options: {
            name: '[name]-[hash].[ext]',
          },
        },
      },
      {test: /\/src\/js\/(?:.*)\.css$/, use: [{loader: 'style-loader'}, {loader: 'css-loader'}]},
      {
        test: [/\.scss$/, /\.sass$/],
        use: [
          MiniCssExtractPlugin.loader,
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            },
          },
          {
            loader: 'resolve-url-loader',
            options: {
              debug: true,
              root: path.join(__dirname, './static/img'),
              includeRoot: true,
              absolute: true,
            },
          },
          {
            loader: 'sass-loader',
            options: {
              outputStyle: 'compressed',
              sourceMap: true,
              includePaths: [
                './app/javascript/components/assets/scss',
              ],
            },
          },
        ],
      },
    ],
  },

  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/app/javascript/components/assets/scss',
  },

  plugins: [
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: '[name]-[chunkhash].css',
      chunkFilename: '[name]-[chunkhash].css', // Ensure each chunk has a unique id
    }),
  ],

  devtool: 'source-map'
};

将 sass 加载器添加到 environment.js 文件

./config/webpack/environment.js

const { environment } = require('@rails/webpacker')

// resolve-url-loader must be used before sass-loader
environment.loaders.get('sass').use.splice(-1, 0, {
  loader: 'resolve-url-loader',
  options: {
    attempts: 1
  }
});

module.exports = environment

我也试过npm rebuild node-sass

在我尝试配置 webpack 和 resolve-url-loader 之后，我仍然无法让它工作。我已经阅读了他们各自的文档、其他问题和解决方案，但即使是 resolve-url-loader 自己的文档也说它很难配置。

我希望能够在我的 app 文件夹中编译和处理 scss/sass 文件

当前文件夹结构

./ (root folder)
  ./Webpack.config.js
  ./Config/webpack/environment
  ./App/javascript ( root folder react app)

请问我是否需要更多信息

标签： ruby-on-railsreactjswebpackcloud9resolve-url-loader

ruby-on-rails - 设置 Material UI 套件 React 时，Sass-Loader 的模块构建失败

问题描述

解决方案

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