Vue开启Gzip打包异常：webpack打包报错Cannot read property ‘emit‘ of undefined

Vue开启Gzip打包异常：webpack打包报错Cannot read property 'emit' of undefined

相关代码

const CompressionPlugin = require('compression-webpack-plugin')

webpackConfig.plugins.push(

var path = require('path')
var utils = require('./utils')
var webpack = require('webpack')
var config = require('../config')
var merge = require('webpack-merge')
var baseWebpackConfig = require('./webpack.base.conf')
var CopyWebpackPlugin = require('copy-webpack-plugin')
var HtmlWebpackPlugin = require('html-webpack-plugin')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var OptimizeCSSPlugin = require('optimize-css-assets-webpack-plugin')
var CompressionWebpackPlugin = require('compression-webpack-plugin');var env = config.build.env;
var productionGzipExtensions = ['js','css','html','svg','png','less','jpg','jpeg','woff','ttf','woff2','ico',
];var webpackConfig = merge(baseWebpackConfig, {module: {rules: utils.styleLoaders({sourceMap: config.build.productionSourceMap,extract: true})},devtool: config.build.productionSourceMap ? '#source-map' : false,output: {path: config.build.assetsRoot,filename: utils.assetsPath('js/[name].[chunkhash].js'),chunkFilename: utils.assetsPath('js/[id].[chunkhash].js')},plugins: [// http://vuejs.github.io/vue-loader/en/workflow/production.htmlnew webpack.DefinePlugin({'process.env': env}),// new CompressionWebpackPlugin({//     algorithm: 'gzip',//     test: productionGzipExtensions,//     threshold: 0,//     minRatio: 0.8,// }),new webpack.optimize.UglifyJsPlugin({compress: {warnings: false},sourceMap: false}),// extract css into its own filenew ExtractTextPlugin({filename: utils.assetsPath('css/[name].[contenthash].css')}),// Compress extracted CSS. We are using this plugin so that possible// duplicated CSS from different components can be deduped.new OptimizeCSSPlugin({cssProcessorOptions: {safe: true}}),// generate dist index.html with correct asset hash for caching.// you can customize output by editing /index.html// see https://github.com/ampedandwired/html-webpack-pluginnew HtmlWebpackPlugin({filename: config.build.index,template: 'index.html',inject: true,minify: {removeComments: true,collapseWhitespace: true,removeAttributeQuotes: true// more options:// https://github.com/kangax/html-minifier#options-quick-reference},// necessary to consistently work with multiple chunks via CommonsChunkPluginchunksSortMode: 'dependency'}),// keep module.id stable when vender modules does not changenew webpack.HashedModuleIdsPlugin(),// split vendor js into its own filenew webpack.optimize.CommonsChunkPlugin({name: 'vendor',minChunks: function(module, count) {// any required modules inside node_modules are extracted to vendorreturn (module.resource &&/\.js$/.test(module.resource) &&module.resource.indexOf(path.join(__dirname, '../node_modules')) === 0)}}),// extract webpack runtime and module manifest to its own file in order to// prevent vendor hash from being updated whenever app bundle is updatednew webpack.optimize.CommonsChunkPlugin({name: 'manifest',chunks: ['vendor']}),// copy custom static assetsnew CopyWebpackPlugin([{from: path.resolve(__dirname, '../static'),to: config.build.assetsSubDirectory,ignore: ['.*']}])]
})if (config.build.productionGzip) {var CompressionWebpackPlugin = require('compression-webpack-plugin')webpackConfig.plugins.push(new CompressionWebpackPlugin({algorithm: 'gzip',test: new RegExp('\\.(' +config.build.productionGzipExtensions.join('|') +')$'),threshold: 1024,minRatio: 0.8}))
}if (config.build.bundleAnalyzerReport) {var BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPluginwebpackConfig.plugins.push(new BundleAnalyzerPlugin())
}module.exports = webpackConfig

错误如下

compiler.hooks.emit.tapAsync({ name: 'CompressionPlugin' }, emit);

TypeError: Cannot read property 'emit' of undefined

at CompressionPlugin.apply (C:\MyWayProject\2018\vue\ehrAdmin\node_modules\compression-webpack-plugin\dist\index.js:175:20)

解决方案

把compression-webpack-plugin降到1.1.12即可

//卸载原高版本compression-webpack-plugin
npm uninstall --key compression-webpack-plugin
//新安装低版本compression-webpack-plugin
npm install --save-dev compression-webpack-plugin@1.1.12

参考资料：https://segmentfault.com/q/1010000016321028