webpack配置styl+postcss+ExtractTextPlugin错误!

Question

不用ExtractTextPlugin都不报错,用这个插件配置不来啊

const path = require('path')
const ExtractTextPlugin = require("extract-text-webpack-plugin")

module.exports = {
    entry:'./index.js',
    output:{
        filename:'build.js',
        path:path.resolve(__dirname, 'dist')
    },
  module: {
    rules: [
      {
        test: /\.styl$/,
        use:ExtractTextPlugin.extract({use:[
          'style-loader',
          { loader: 'css-loader', options: { importLoaders: 2 } },
          'postcss-loader',
          'stylus-loader'
        ]})
      }
    ]
  },
  plugins: [
    new ExtractTextPlugin("styles.css"),
  ]
}

Answer 1

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