我正在构建一个Angular 2应用程序，到目前为止，大多数事情已按计划进行。但是，今天当我启动我的应用程序时，我在浏览器控制台中收到一条错误消息：
Error: Error: XHR error (404 Not Found) loading http://localhost:3000/node_modules//socket.io-client/socket.io.js(…)
对我来说奇怪的是，我几天前推出的应用程序版本没有任何问题，应用程序的任何相关部分都没有任何不同。那么......在哪里寻找解决这个问题的方法？另外，为了澄清，当我键入“npm start”时终端没有出现错误，而是我只是在浏览器中挂起“正在加载...”文本，当我看到控制台时，就是当我看到错误时我把它包含在上面。
这是我的package.json文件：
{
"name": "abc",
"version": "0.0.1",
"scripts": {
"start": "tsc && concurrently \"npm run tsc:w\" \"npm run lite\" ",
"lite": "lite-server",
"postinstall": "typings install",
"tsc": "tsc",
"tsc:w": "tsc -w",
"typings": "typings",
"docs": "typedoc --experimentalDecorators --out docs/ app/ --target 'es5' -module 'system' --ignoreCompilerErrors",
"clean": "del /q dist",
"browserify": "^13.0.1",
"uglifyjs": "^2.4.10",
"minify": "uglifyjs dist/main.min.js --screw-ie8 --compress --mangle --output dist/main.min.js",
"build": "npm run clean && tsc",
"build_prod": "npm run build && browserify -s main dist/main.js > dist/main.min.js && npm run minify"
},
"license": "ISC",
"dependencies": {
"@angular/common": "^2.0.0",
"@angular/compiler": "^2.0.0",
"@angular/core": "^2.0.0",
"@angular/forms": "^2.0.0",
"@angular/http": "^2.0.0",
"@angular/material": "^2.0.0-alpha.10",
"@angular/platform-browser": "^2.0.0",
"@angular/platform-browser-dynamic": "^2.0.0",
"@angular/router": "^3.0.0",
"@angular2-material/button": "^2.0.0-alpha.8-2",
"@angular2-material/core": "^2.0.0-alpha.8-2",
"@angular2-material/input": "^2.0.0-alpha.8-2",
"angular-in-memory-web-api": "~0.1.15",
"bootstrap": "^3.3.6",
"core-js": "^2.4.1",
"hammerjs": "^2.0.8",
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.0-beta.12",
"socket.io-client": "^1.4.8",
"systemjs": "0.19.27",
"typings": "^1.5.0",
"zone.js": "^0.6.23"
},
"devDependencies": {
"@types/hammerjs": "^2.0.32",
"browserify": "^13.0.1",
"concurrently": "^2.2.0",
"jasmine-core": "^2.5.2",
"karma": "^1.3.0",
"karma-chrome-launcher": "^2.0.0",
"karma-jasmine": "^1.0.2",
"lite-server": "^2.2.2",
"typescript": "^2.0.2",
"typings": "^1.5.0",
"uglifyjs": "^2.4.10"
}
}