Troubleshooting when Bootstrap styles are not being applied through Webpack

After setting up Bootstrap along with webpack, I encountered a problem where no Bootstrap styling or CSS was being applied when running my application.

The configuration in my webpack.config.js file is as follows:

// JavaScript imports here

Upon checking the browser console, I found this error message:

Uncaught Error: Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/css-loader/dist/cjs.js):
CssSyntaxError

(192:1) Unknown word

I'm currently unsure of the root cause of this error and where it originates from. Any guidance would be greatly appreciated.

cssnode.jswebpackbootstrap-4loader

Answer №1

Displayed below are two variations for development and production environments along with all the code provided in the webpack-boilerplate repository:

Development:

{
  test: /\.(css|sass|scss)$/,
  use: [
    'style-loader',
    {
      loader: 'css-loader',
      options: {
        importLoaders: 2,
        sourceMap: true
      },
    },
    {
      loader: 'sass-loader',
      options: {
        sourceMap: true,
      },
    }
  ],
},

Production:

{
  test: /\.(css|sass|scss)$/,
  use: [
    MiniCssExtractPlugin.loader,
    {
      loader: 'css-loader',
      options: {
        sourceMap: true,
        importLoaders: 2
      },
    },
    {
      loader: 'sass-loader',
      options: {
        sourceMap: true,
      },
    },
  ],
},

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