找不到模块"popper.js"；Angular 5 Visual Studio 2017 asp.net核心

本文介绍了找不到模块"popper.js"；Angular 5 Visual Studio 2017 asp核心的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我将Angular的版本从4更新为5.以下是屏幕截图，我按照链接

package.json 文件

{"name":"VotingWebsite"，私人":是的，"version":"0.0.0"，脚本":{"test":业力启动ClientApp/test/karma.conf.js"}，"devDependencies":{"@ angular/animations":"5.2.1"，"@ angular/common":"5.2.1"，"@ angular/compiler":"5.2.1"，"@ angular/compiler-cli":"5.2.1"，"@ angular/core":"5.2.1"，"@ angular/forms":"5.2.1"，"@ angular/http":"5.2.1"，"@ angular/platform-b​​rowser":"5.2.1"，"@ angular/platform-b​​rowser-dynamic":"5.2.1"，"@ angular/platform-server":"5.2.1"，"@ angular/router":"5.2.1"，"@ ngtools/webpack":"1.9.5"，"@ types/chai":"4.1.1"，"@ types/茉莉花":"2.8.5"，"@ types/webpack-env":"1.13.3"，"angular2-router-loader":"0.3.5"，"angular2-template-loader":"0.6.2"，"aspnet-prerendering":"^ 3.0.1"，"aspnet-webpack":"^ 2.0.1"，"awesome-typescript-loader":"3.4.1"，"popper.js":"^ 1.12.5"，"bootstrap":"4.0.0"，"chai":"4.1.2"，"css":"2.2.1"，"css-loader":"0.28.9"，"es6-shim":"0.35.3"，"event-source-polyfill":"0.0.12"，"expose-loader":"0.7.4"，"extract-text-webpack-plugin":"3.0.2"，"file-loader":"1.1.6"，"html-loader":"0.5.5"，"isomorphic-fetch":"2.2.1"，茉莉花芯":"2.9.1"，"jquery":"3.3.1"，"json-loader":"0.5.7"，业力":"2.0.0"，"karma-chai":"0.1.0"，业力铬发射器":"2.2.0"，"karma-cli":"1.0.1"，业力茉莉花":"1.1.1"，"karma-webpack":"2.0.9"，"preboot":"6.0.0-beta.1"，"raw-loader":"0.5.1"，"reflect-metadata":"0.1.12"，"rxjs":"5.5.6"，"style-loader":"0.19.1"，"to-string-loader":"1.1.5"，"typescript":"2.6.2"，"url-loader":"0.6.2"，"webpack":"3.10.0"，"webpack-hot-middleware":"2.21.0"，"webpack-merge":"4.1.1"，"zone.js":"0.8.20"}}

我收到错误消息

未捕获的错误:找不到模块"popper.js"在webpackMissingModule(vendor.js?v = g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82252)在vendor.js?v = g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82252< anonymous>.(vendor.js?v = g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82255)在__webpack_require__(vendor.js?v = g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:21)< anonymous>.(来自DLL引用vendor_19596f3f8868cecda14a:1的bootstrap.js)在__webpack_require__(bootstrap acba0f7e8b1985fd75ba:678)在fn(bootstrap acba0f7e8b1985fd75ba:88)< anonymous>.(process-update.js:146)在__webpack_require__(bootstrap acba0f7e8b1985fd75ba:678)在fn(bootstrap acba0f7e8b1985fd75ba:88)

Webpack.config.js

const path = require('path');const webpack = require('webpack');const merge = require('webpack-merge');const AngularCompilerPlugin = require('@ ngtools/webpack').AngularCompilerPlugin;const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;module.exports =(env)=>{//客户端和服务器端捆绑包都具有相同的配置const isDevBuild =！(env&& env.prod);const sharedConfig = {stats:{modules:false}，上下文:__ dirname，解析:{扩展名:['.js'，'.ts']}，输出: {文件名:"[name] .js"，publicPath:'dist/'//Webpack开发者中间件(如果启用)处理对该URL前缀的请求}，模块: {规则:[{test:/\.ts$/，使用:isDevBuild吗?['awesome-typescript-loader?silent = true'，'angular2-template-loader'，'angular2-router-loader']:'@ ngtools/webpack'}，{test:/\.html$/，使用:'html-loader?minimize = false'}，{测试:/\.css$/，使用:['to-string-loader'，isDevBuild吗?'css-loader':'css-loader?minimize']}，{test:/\.(png|jpg|jpeg|gif|svg)$/，使用:'url-loader?limit = 25000'}]}，插件:[new CheckerPlugin()]};//适用于在浏览器中运行的客户端捆绑包的配置const clientBundleOutputDir ='./wwwroot/dist';const clientBundleConfig = merge(sharedConfig，{条目:{'main-client':'./ClientApp/boot.browser.ts'}，输出:{path:path.join(__ dirname，clientBundleOutputDir)}，插件:[新的webpack.DllReferencePlugin({上下文:__ dirname，清单:require('./wwwroot/dist/vendor-manifest.json')})] .concat(isDevBuild?[//仅适用于开发版本的插件新的webpack.SourceMapDevToolPlugin({filename:'[file] .map'，//如果您喜欢嵌入式源地图，请删除此行moduleFilenameTemplate:path.relative(clientBundleOutputDir，'[resourcePath]')//将源映射项指向磁盘上的原始文件位置})]:[//仅适用于生产版本的插件新的webpack.optimize.UglifyJsPlugin()，新的AngularCompilerPlugin({tsConfigPath:'./tsconfig.json'，entryModule:path.join(__ dirname，'ClientApp/app/app.browser.module#AppModule')，排除:['./**/*.server.ts']})])});//适用于在Node中运行的服务器端(prerendering)捆绑包的配置const serverBundleConfig = merge(sharedConfig，{解析:{mainFields:['main']}，条目:{'main-server':'./ClientApp/boot.server.ts'}，插件:[新的webpack.DllReferencePlugin({上下文:__ dirname，清单:require('./ClientApp/dist/vendor-manifest.json')，sourceType:'commonjs2'，名称:"./vendor"})] .concat(isDevBuild?[]:[//仅适用于生产版本的插件新的AngularCompilerPlugin({tsConfigPath:'./tsconfig.json'，entryModule:path.join(__ dirname，'ClientApp/app/app.server.module#AppModule')，排除:['./**/*.browser.ts']})])，输出: {libraryTarget:'commonjs'，路径:path.join(__ dirname，'./ClientApp/dist')}，目标:节点"，devtool:"inline-source-map"});返回[clientBundleConfig，serverBundleConfig];};

它与asp核心Visual Studio 2017中的angular 4模板完美配合.当我将该程序包更新为Angular 5时，出现如上所述的错误.

我试图用Google搜索解决方案，但找不到解决方案.

解决方案

我通过以下方式解决了项目中的相同问题:

1)将popper.js添加到package.json文件(我已经看到了)，然后运行"npm install":

"popper.js":"^ 1.12.9"，

2)在导入引导程序语句之前，在boot.browser.js文件中添加Import popper.js语句:

import'popper.js';导入'bootstrap';

I updated my Angular's verision from 4 to 5. Below is the screenshot, I followed the instruction as per the link www.talkingdotnet/upgrade-angular-4-app-angular-5-visual-studio-2017/

package.json file

{ "name": "VotingWebsite", "private": true, "version": "0.0.0", "scripts": { "test": "karma start ClientApp/test/karma.conf.js" }, "devDependencies": { "@angular/animations": "5.2.1", "@angular/common": "5.2.1", "@angular/compiler": "5.2.1", "@angular/compiler-cli": "5.2.1", "@angular/core": "5.2.1", "@angular/forms": "5.2.1", "@angular/http": "5.2.1", "@angular/platform-browser": "5.2.1", "@angular/platform-browser-dynamic": "5.2.1", "@angular/platform-server": "5.2.1", "@angular/router": "5.2.1", "@ngtools/webpack": "1.9.5", "@types/chai": "4.1.1", "@types/jasmine": "2.8.5", "@types/webpack-env": "1.13.3", "angular2-router-loader": "0.3.5", "angular2-template-loader": "0.6.2", "aspnet-prerendering": "^3.0.1", "aspnet-webpack": "^2.0.1", "awesome-typescript-loader": "3.4.1", "popper.js": "^1.12.5", "bootstrap": "4.0.0", "chai": "4.1.2", "css": "2.2.1", "css-loader": "0.28.9", "es6-shim": "0.35.3", "event-source-polyfill": "0.0.12", "expose-loader": "0.7.4", "extract-text-webpack-plugin": "3.0.2", "file-loader": "1.1.6", "html-loader": "0.5.5", "isomorphic-fetch": "2.2.1", "jasmine-core": "2.9.1", "jquery": "3.3.1", "json-loader": "0.5.7", "karma": "2.0.0", "karma-chai": "0.1.0", "karma-chrome-launcher": "2.2.0", "karma-cli": "1.0.1", "karma-jasmine": "1.1.1", "karma-webpack": "2.0.9", "preboot": "6.0.0-beta.1", "raw-loader": "0.5.1", "reflect-metadata": "0.1.12", "rxjs": "5.5.6", "style-loader": "0.19.1", "to-string-loader": "1.1.5", "typescript": "2.6.2", "url-loader": "0.6.2", "webpack": "3.10.0", "webpack-hot-middleware": "2.21.0", "webpack-merge": "4.1.1", "zone.js": "0.8.20" } }

I am getting an error as

Uncaught Error: Cannot find module "popper.js" at webpackMissingModule (vendor.js?v=g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82252) at vendor.js?v=g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82252 at Object.<anonymous> (vendor.js?v=g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:82255) at __webpack_require__ (vendor.js?v=g866IhqI_4JvgibiHgn9GiAXKfG42-s7C9LGGfxA0Tk:sourcemap:21) at Object.<anonymous> (bootstrap.js from dll-reference vendor_19596f3f8868cecda14a:1) at __webpack_require__ (bootstrap acba0f7e8b1985fd75ba:678) at fn (bootstrap acba0f7e8b1985fd75ba:88) at Object.<anonymous> (process-update.js:146) at __webpack_require__ (bootstrap acba0f7e8b1985fd75ba:678) at fn (bootstrap acba0f7e8b1985fd75ba:88)

Webpack.config.js

const path = require('path'); const webpack = require('webpack'); const merge = require('webpack-merge'); const AngularCompilerPlugin = require('@ngtools/webpack').AngularCompilerPlugin; const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin; module.exports = (env) => { // Configuration in common to both client-side and server-side bundles const isDevBuild = !(env && env.prod); const sharedConfig = { stats: { modules: false }, context: __dirname, resolve: { extensions: [ '.js', '.ts' ] }, output: { filename: '[name].js', publicPath: 'dist/' // Webpack dev middleware, if enabled, handles requests for this URL prefix }, module: { rules: [ { test: /\.ts$/, use: isDevBuild ? ['awesome-typescript-loader?silent=true', 'angular2-template-loader', 'angular2-router-loader'] : '@ngtools/webpack' }, { test: /\.html$/, use: 'html-loader?minimize=false' }, { test: /\.css$/, use: [ 'to-string-loader', isDevBuild ? 'css-loader' : 'css-loader?minimize' ] }, { test: /\.(png|jpg|jpeg|gif|svg)$/, use: 'url-loader?limit=25000' } ] }, plugins: [new CheckerPlugin()] }; // Configuration for client-side bundle suitable for running in browsers const clientBundleOutputDir = './wwwroot/dist'; const clientBundleConfig = merge(sharedConfig, { entry: { 'main-client': './ClientApp/boot.browser.ts' }, output: { path: path.join(__dirname, clientBundleOutputDir) }, plugins: [ new webpack.DllReferencePlugin({ context: __dirname, manifest: require('./wwwroot/dist/vendor-manifest.json') }) ].concat(isDevBuild ? [ // Plugins that apply in development builds only new webpack.SourceMapDevToolPlugin({ filename: '[file].map', // Remove this line if you prefer inline source maps moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk }) ] : [ // Plugins that apply in production builds only new webpack.optimize.UglifyJsPlugin(), new AngularCompilerPlugin({ tsConfigPath: './tsconfig.json', entryModule: path.join(__dirname, 'ClientApp/app/app.browser.module#AppModule'), exclude: ['./**/*.server.ts'] }) ]) }); // Configuration for server-side (prerendering) bundle suitable for running in Node const serverBundleConfig = merge(sharedConfig, { resolve: { mainFields: ['main'] }, entry: { 'main-server': './ClientApp/boot.server.ts' }, plugins: [ new webpack.DllReferencePlugin({ context: __dirname, manifest: require('./ClientApp/dist/vendor-manifest.json'), sourceType: 'commonjs2', name: './vendor' }) ].concat(isDevBuild ? [] : [ // Plugins that apply in production builds only new AngularCompilerPlugin({ tsConfigPath: './tsconfig.json', entryModule: path.join(__dirname, 'ClientApp/app/app.server.module#AppModule'), exclude: ['./**/*.browser.ts'] }) ]), output: { libraryTarget: 'commonjs', path: path.join(__dirname, './ClientApp/dist') }, target: 'node', devtool: 'inline-source-map' }); return [clientBundleConfig, serverBundleConfig]; };

It was working perfectly with angular 4 template in asp core Visual Studio 2017. When I update the package to Angular 5, I'm getting an error as described above.

I tried to google the solution, but not able to find the solution.

解决方案

I fixed the same problem in my project by:

1) Adding popper.js to the package.json file (I see you already have this), and running "npm install":

"popper.js": "^1.12.9",

2) Adding an Import popper.js statement to the boot.browser.js file before the import bootstrap statement:

import 'popper.js'; import 'bootstrap';