router.jsimportVuefrom'vue'importRouterfrom'vue-router'Vue.use(Router);exportdefaultfunctioncreateRouter(){returnnewRouter({mode:'history',routes:[{path:'/',redirect:{name:'articleList'},name:'index'},{path:'/article',name:'article',component:()=>import(/*webpackChunkName:"article"*/'./article/index.vue'),children:[{path:'list.html',name:'articleList',component:()=>import(/*webpackChunkName:"articleList"*/'./article/articleList.vue')},{path:'articleDetails.html',name:'articleDetails',component:()=>import(/*webpackChunkName:"articleDetails"*/'./article/articleDetails.vue')}]},{path:'/crawler.html',name:'crawler',component:()=>import(/*webpackChunkName:"crawler"*/'./crawler/index.vue')},{path:'/register.html',name:'register',component:()=>import(/*webpackChunkName:"register"*/'./user/register.vue')},{path:'/messageBoard.html',name:'messageBoard',component:()=>import(/*webpackChunkName:"messageBoard"*/'./messageBoard/index.vue')},{path:'/profile.html',name:'profile',component:()=>import(/*webpackChunkName:"profile"*/'./profile/index.vue')}]})}webpack.base.jsconst{VueLoaderPlugin}=require('vue-loader');constMiniCssExtractPlugin=require('mini-css-extract-plugin')constisPro=require('process').env.NODE_ENV==='production';module.exports={mode:'development',module:{rules:[{test:/\.vue$/,loader:'vue-loader',options:{extractCSS:isPro}},{test:/\.js$/,loader:'babel-loader',exclude:/node_modules/},{test:/\.less$/,use:[isPro?MiniCssExtractPlugin.loader:'vue-style-loader','css-loader','less-loader']},{test:/\.css$/,use:[isPro?MiniCssExtractPlugin.loader:'vue-style-loader','css-loader']},{test:/\.(eot|svg|ttf|woff|woff2)(\?\S*)?$/,loader:'file-loader'}]},plugins:[newMiniCssExtractPlugin({filename:'[name].[hash].css'}),newVueLoaderPlugin()],resolve:{alias:{'vue$':'vue/dist/vue.js'}}}ReferenceError:documentisnotdefinedatr.(anonymousfunction).r.(anonymousfunction).(anonymousfunction).i.push.r.(anonymousfunction).Promise.then.r.(anonymousfunction)(webpack/bootstrap:52:0)atnewPromise()atFunction.module.exports.o.e[ase](webpack/bootstrap:49:0)atcomponent(src/router.js:24:65)atD:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1776:17atD:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1803:66atArray.map()atD:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1803:38atArray.map()atflatMapComponents(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1802:26)atD:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1738:5atiterator(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1945:7)atstep(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1719:9)atstep(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1723:9)atrunQueue(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1727:3)atAbstractHistory.confirmTransition(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1974:3)atAbstractHistory.transitionTo(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:1876:8)atAbstractHistory.push(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:2379:10)atVueRouter.push(D:\myCode\vuessr2\node_modules\vue-router\dist\vue-router.common.js:2536:16)atbundle.server.js:1:22479atnewPromise()att.default(entry/server.js:8:9)1.報錯文件是打包后的vue-ssr-server-bundle.json。即vuessr的服務器端文件。2.如果router處的組件不采用按需加載不會出現錯誤3.如果webpack不使用mini-css-extract-plugin單獨提取css也不會報錯。4.報錯已經定位是()=>import()reject了webpack編譯沒有問題，不會報錯。跪求解答