我是全新的角色2,并试图跟随我发现的视频教程.尽管遵循所有步骤,但是Angular将不会奏效;我收到以下错误：
compiler.umd.js:13854 Uncaught Error: No NgModule Metadata found for 'App'.
并且组件根本不加载.
这是我的文件：
的package.json：
{
"name": "retain","version": "1.0.0","description": "","main": "index.js","scripts": {
"test": "webpack --config webpack.spec.ts --progress --color && karma start","start": "webpack-dev-server --inline --colors --progress --display-error-details --display-cached --port 3000 --content-base src"
},"author": "","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/platform-browser": "2.0.0","@angular/platform-browser-dynamic": "2.0.0","@angular/router": "3.0.0","core-js": "2.4.1","lodash": "4.16.1","rxjs": "5.0.0-beta.12","zone.js": "0.6.25"
},"devDependencies": {
"@types/core-js": "0.9.33","@types/lodash": "4.14.35","@types/node": "6.0.39","awesome-typescript-loader": "2.2.4","css-loader": "0.23.1","jasmine-core": "2.4.1","karma": "1.1.1","karma-chrome-launcher": "1.0.1","karma-jasmine": "1.0.2","karma-mocha-reporter": "2.0.4","raw-loader": "0.5.1","to-string-loader": "1.1.4","ts-helpers": "1.1.1","typescript": "2.0.2","webpack": "1.13.1","webpack-dev-server": "1.14.1"
}
}
index.html的：
<!DOCTYPE html>
<html>
<head>
<Meta charset=UTF-8>
<title>Retain</title>
<link rel="icon" href="data:;base64,iVBORw0KGgo=">
<Meta name="viewport" content="width=device-width,initial-scale=1">
<link href='https://cdnjs.cloudflare.com/ajax/libs/normalize/4.1.1/normalize.min.css' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/flexBoxgrid/6.3.0/flexBoxgrid.min.css" type="text/css">
<link href="https://fonts.googleapis.com/icon?family=Material+Icons"
rel="stylesheet">
<link href="global.css" rel="stylesheet">
<base href="/">
</head>
<body>
<app>
... before angular loads.
</app>
<script src="polyfills.bundle.js"></script>
<script src="vendor.bundle.js"></script>
<script src="main.bundle.js"></script>
</body>
</html>
main.ts：
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
import { App } from './app/app';
const platform = platformBrowserDynamic();
platform.bootstrapModule(App);
platformBrowserDynamic().bootstrapModule(AppModule);
app.ts：
import { Component } from '@angular/core';
import { NgModule } from '@angular/core';
@Component({
selector: 'app',template: `
<div>
<h3>
Yo,world!
</h3>
</div>
`
})
export class App {}
app.module.ts：
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { App } from './app';
@NgModule({
imports: [BrowserModule],declarations: [App],bootstrap: [App]
})
export class AppModule{};
谢谢你的时间.
