如何使用SCSS设置反应应用程序？(错误)

Question

我正在尝试设置我的反应项目,所以我可以使用SCSS格式的SASS.

这是在我的webpack.config.dev.js中:

      {
        test: /\.scss$/,
        exclude: /node_modules/,
        use: [
          require.resolve('style-loader'),
          {
            loader: require.resolve('css-loader'),
            options: {
              importLoaders: 1,
            },
          },
          {
            loader: require.resolve('sass-loader'),
          }
        ]
      }

我以两种不同的方式将scss文件导入我的jsx:

import './index.scss';
import css from './ModalWrapper.scss';

当我运行应用程序时,我目前收到错误:

./src/index.scss
Module build failed: 
body {
^
      Invalid CSS after "m": expected 1 selector or at-rule, was "module.exports = __"
      in /pathtoapp/web/src/index.scss (line 1, column 1)

看来我,那个,反应是试图将SCSS解释为应该起作用的CSS.另外,反应认为身体不是有效的CSS.在那里,我认为CSS或SCSS都没有正确加载.

任何帮助,将不胜感激.这个问题有很多未解决的问题.

Answer 1

如果您在Webpack 3上,请将其添加到 module.rules

{
    test: /\.scss$/,
    loader: [
      require.resolve('style-loader'),
      require.resolve('css-loader'),
      require.resolve('sass-loader'),
    ]
},

然后添加文件加载器并确保像这样添加.scss到键的数组exclude

{
        loader: require.resolve('file-loader'),
        // Exclude `js` files to keep "css" loader working as it injects
        // it's runtime that would otherwise processed through "file" loader.
        // Also exclude `html` and `json` extensions so they get processed
        // by webpacks internal loaders.
        exclude: [/\.js$/, /\.html$/, /\.json$/, /\.scss$/,],
        options: {
          name: 'static/media/[name].[hash:8].[ext]',
        },
}

当然还有,确保你有style-loader,sass-loader,css-loader并file-loader在你的package.json.使用最新版本时,此代码段对我有用create-react-app.

Answer 2

这就是最终为我工作的结果：

{
        test: /\.scss$/,
        use: [{
          loader: 'style-loader'
        }, {
          loader: 'css-loader',
          options: {
            modules: true,
            sourceMap: true,
            localIdentName: "[local]___[hash:base64:5]",
          },
        }, {
          loader: 'sass-loader',
          options: {
            outputStyle: "expanded",
            sourceMap: true,
          },
        }]
      },