// 错误提示

Error: Breaking change: extract now only takes a single argument. Either an options object *or* the loader(s).
Example: if your old code looked like this:
 ExtractTextPlugin.extract('style-loader', 'css-loader')

You would change it to:
 ExtractTextPlugin.extract({ fallback: 'style-loader', use: 'css-loader' })

{
 test: /\.less$/,
 use: ExtractTextPlugin.extract({
  fallback: 'style-loader',
  use: ['css-loader', 'less-loader']
 })
},

{
 filename: pageName + '.html',
 template: __dirname + '/src/' + pageName + '.html',
 chunks: pageConf.chunks,
 inject: true
};

{
 filename: pageName + '.html',
 template: __dirname + '/src/' + pageName + '.html',
 files: {
  chunks: pageConf.chunks,
 },
 inject: true
};

 ✘ http://eslint.org/docs/rules/ Parsing error: The keyword 'import' is reserved
 src\entry.client.js:7:1
 import { createApp } from './app'
 ^

"parser": "babel-eslint",

{
 test: /\.vue$/,
 loader: 'vue-loader',
 options: {
  extractCSS: isProd,
  preserveWhitespace: false,
  postcss: [
  require('autoprefixer')({
   browsers: ['last 3 versions']
  })
  ]
 }
},