What could be causing the error message 'Alias configuration for Field browser is not valid' to appear when attempting to compile SCSS using Webpack through the terminal?

Recently, I decided to try using webpack to compile my scss files for the first time. However, when attempting to start it, I encountered an error message stating:

Field 'browser' doesn't contain a valid alias configuration

In addition, another error popped up saying:

Module not Found: Error: Can't resolve './src'

To make matters worse, a red text displayed my file directory with /index doesn't exist (.js / .json / .wasm). Below is a snippet of my current webpack.config.js configuration:

module.exports = [{
entry: 'mat-design.scss',
output: {
  filename: 'style-bundle.js',
},
module: {
  rules: [
    {
      test: /\.scss$/,
      use: [
        {
          loader: 'file-loader',
          options: {
            name: 'styles.scss',
          },
        },
        { loader: 'extract-loader' },
        { loader: 'css-loader' },
        {
          loader: 'sass-loader',
          options: {
            implementation: require('sass'),
            mode: development,
            webpackImporter: false,
          },
        },
      ]
    }
  ]
},

}];

Would appreciate any assistance in resolving these issues.

Answer №1

Seems like the resolve module is missing, which informs webpack about the file type to search for when a filename lacks an extension

To fix this issue, include the following code snippet in your configuration file:

module.exports = [{
    entry: 'mat-design.scss',
    (...)
    resolve: {
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.json', '.css', '.scss'],
        modules: ['src', 'node_modules'] // Assuming that your files are located within the src directory
    }
}]

Reference - https://webpack.js.org/configuration/resolve/

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