Cannot read property 'entryOption' of undefined

webpack file

  const SVGSpritemapPlugin = require('svg-spritemap-webpack-plugin');

  ...

  plugins: [
    new ExtractTextPlugin('styles.css'),
    new CopyWebpackPlugin([
      {
        from: path.resolve(__dirname, 'resources/img'),
        to: path.resolve(__dirname, 'public/dist/images')
      }
    ]),
    new SVGSpritemapPlugin({
    //   src: path.resolve(__dirname, 'resources/icons'),
    //   filename: 'sprites.svg'
    })
  ]

This is the firts time I use webpack. Added the const at the top and updated the plugin array. After that trying to run webpack, but I end up with a error below. Added various configurations, same result. I get the following error. Using webpack 3.11.0.

node node_modules/cross-env/dist/bin/cross-env.js NODE_ENV=development webpack /var/www/…/node_modules/webpack/bin/webpack.js:348 throw err; ^ TypeError: Cannot read property ‘entryOption’ of undefined

[achabahe]

change the version of webpack-dev-server to “3.0.0” and not “^3.0.0”;

You are welcome 😃

[NguyenHoangSon96]

change the version of webpack-dev-server to “3.0.0” and not “^3.0.0”;

You are welcome 😃 This should be an excepted answer