SCSS files not compiling to CSS in react using Webpack

Question

Following is my folder structure & Files for React project which is working fine but I am unable to add CSS through SCSS via Webpack using extract-text-webpack-plugin. Let me know what I am doing wrong with the configuration.

Folder Structure -

Webpack.config.js File -

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackPluginConfig = new HtmlWebpackPlugin({
    template: './app/index.html',
    filename: 'index.html',
    inject: 'body'
});
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const ExtractTextPluginConfig = new ExtractTextPlugin('main.css',{
    allChunks: true
});

module.exports = {
    entry: './app/app.jsx',
    output: {
        path: path.resolve('dist'),
        filename: 'bundle.js'
    },
    devtool: 'source-map',
    module: {
        loaders: [
            {test: /.js$/, loader: 'babel-loader', exclude: /node_modules/},
            {test: /.jsx$/, loader: 'babel-loader', exclude: /node_modules/},
            {test: /\.scss$/, loader: ExtractTextPlugin.extract("style-loader", "css-loader")}
        ]
    },
    plugins: [HtmlWebpackPluginConfig, ExtractTextPluginConfig]
};

Package.json -

{
  "name": "reactyarn",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "scripts": {
    "start": "webpack-dev-server --hot"
  },
  "devDependencies": {
    "babel-core": "^6.25.0",
    "babel-loader": "^7.1.1",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "css-loader": "^0.28.4",
    "extract-text-webpack-plugin": "^3.0.0",
    "html-webpack-plugin": "^2.29.0",
    "sass-loader": "^6.0.6",
    "style-loader": "^0.18.2",
    "webpack": "^3.3.0",
    "webpack-dev-server": "^2.5.1"
  },
  "dependencies": {
    "path": "^0.12.7",
    "react": "^15.6.1",
    "react-dom": "^15.6.1"
  }
}

FYI -

I am not getting any JS error in console, so I believe its only the configuration which is not working.

Josh Burgess · Accepted Answer · 2017-07-19 19:41:06Z

3

You appear to be missing one of the loaders (sass-loader) and setting them up in your modules incorrectly.

Try the example below:

module.exports = {
    entry: './app/app.jsx',
    output: {
        path: path.resolve('dist'),
        filename: 'bundle.js'
    },
    devtool: 'source-map',
    module: {
        loaders: [
            {test: /.js$/, loader: 'babel-loader', exclude: /node_modules/},
            {test: /.jsx$/, loader: 'babel-loader', exclude: /node_modules/},
            {test: /\.scss$/, loaders: ['style-loader', 'css-loader', 'sass-loader'] // <-- this is new
        ]
    },
    sassLoader: {
      includePaths: [path.resolve(__dirname, 'relative/path/to/scss')]
    }, // <--- this is new
    plugins: [HtmlWebpackPluginConfig, ExtractTextPluginConfig]
};

By using ExtractPlugin.extract you're referencing the means to do this in Webpack 2 (using rules and use) but your Webpack config file appears to be geared toward Webpack 1.

answered Jul 19, 2017 at 19:41

Josh Burgess

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2 Comments

Nesh Over a year ago

I made the changes as per your comment but now I am facing error in cmd prompt ..File - pastebin.com/5gW7eRXU Error - i.imgur.com/4jTZITW.png

Josh Burgess Over a year ago

Check documentation here: github.com/webpack-contrib/sass-loader/tree/archive/webpack-1 - Also, ensure you've installed node-sass via npm i -D node-sass

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