CODEWITHSUNDEEP
javascriptwebpackuglifyjs
Nayeon Kim
Nayeon Kim

Reputation: 71

webpack build failed because of uglifyJsPlguin

I try building webpack.config.js file. My command is webpack --config webpack.config.prod.js --progress --colors. But my building is failed because of ulgifyJsPlugin. When I removed uglifyJsPlugin in webpack.config.prod.js, building is successful, but not working when there is UlgifyJsPlugin. I want to minimize my codes by webpack - like remove console.log codes and other unnecessary codes. Plus, I'm using webpack 1.

const webpack = require('webpack');
const path = require('path');
const nodeModulesPath = path.resolve(__dirname, 'node_modules');
const HtmlWebpackPlugin = require('html-webpack-plugin');

const config = {
  entry: [path.join(__dirname, '/src/index.js')],
  devtool: 'source-map',
  output: {
    path: path.join(__dirname, 'dist'), 
    filename: 'bundle.js', 
  },
  module: {
    loaders: [
      {
        test: /\.jsx?$/, 
        loader: 'babel-loader', 
        exclude: [nodeModulesPath]
      },
      {
        test: /\.css$/,
        loaders: ['style', 'css']
      }
    ]
  },
  resolve: {
    root: [
      path.resolve('./src'),
      path.resolve('./style')
    ],
    extensions: ['', '.js', '.jsx', '.css'],
    packageAlias: 'browser'
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html'
    }),
    new webpack.DefinePlugin({
      'process.env':{
        'NODE_ENV': JSON.stringify('production')
      }
    }),
    new AppCachePlugin({
      exclude: ['.htaccess']
    }),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        warnings: false,
      }
    })
  ],
};

module.exports = config;

Upvotes: 0

Views: 284

Answers (1)

cs95
cs95

Reputation: 403012

Try modifying your plugins section to include the plugin like this:

plugins: [
        ...,
        new webpack.optimize.UglifyJsPlugin({
            compress: {
                warnings: false,
            },
            comments: false,
            sourceMap: false,
            mangle: true
        })        
    ]

This works for me.

Also, were you sure to do npm i --save? Make sure you've added the plugin in your node_modules.

Upvotes: 1

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