"Setup" is deprecated warning

[jarodtaylor]

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• Operating System: Mac OS 10.11.6
• Node Version: 8.2.1
• NPM Version: 5.3.0
• webpack Version: 3.6.0
• webpack-dev-server Version: 2.9.0

• This is a bug
• This is a feature request
• This is a modification request

Code

  // webpack.config.js
const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');

/* create array of vendor libs to use in split from bundle */
const VENDOR_LIBS = [
  'react',
  'react-dom'
]

module.exports = {
  entry: {
    bundle: './src/app.js', /* bundle.js will contain everything from app.js */
    vendor: VENDOR_LIBS /* vendor.js will contain all VENDOR_LIBS */
  },
  output: {
    path: path.resolve(__dirname, 'dist'), /* output all files to /dist directory */
    filename: '[name].[chunkhash].js' /* add a hash to each filename for caching and cache busting */
  },
  devServer: {
    contentBase: path.join(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: 'babel-loader'
      }
    ]
  },
  plugins: [
    /*
      Create an index.html file from the src/index.html file
      and add our <script> and <link> tags to it
    */
    new HtmlWebpackPlugin({
      template: './src/index.html'
    }),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'vendor'
    })
  ]
};

When running webpack-dev-server --open I get the following:

Using "setup" is deprecated and will be removed in the next major version. Please use the "before" and "after" hooks instead. 
If "setup" was working fine for you until now, simply replace it with "before".

This is a very barebones React/Webpack boilerplate: https://github.com/jarodtaylor/react-boilerplates/tree/master/barebones

[shellscape]

Duplicate of #1118. Upgrade to 2.9.1 😉

[jarodtaylor]

@shellscape interesting, I got 2.9.0 from running a fresh npm install --save-dev webpack-dev-server. Thanks for the response, I'm good to go, now.