Question

I am following angular.io tutorial in order to learn angular2. I have followed its steps.

created

package.json
systemjs.config.js
tsconfig.ts
typings.json

files

creates app.components.ts

import { component } from '@angular/core'
@Component({
    selector:'my-app',
    template:'<h1>My First Angular 2 App</h1>'
});

export class AppComponent{}

main.ts

import { bootstrap }    from '@angular/platform-browser-dynamic';
import { Appcomponent } from './app.components';

bootstrap(Appcomponent);

and finally index.html

<html>
  <head>
    <title>Angular 2 QuickStart</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="styles.css">
    <!-- 1. Load libraries -->
     <!-- Polyfill(s) for older browsers -->
    <script src="node_modules/core-js/client/shim.min.js"></script>
    <script src="node_modules/zone.js/dist/zone.js"></script>
    <script src="node_modules/reflect-metadata/Reflect.js"></script>
    <script src="node_modules/systemjs/dist/system.src.js"></script>
    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>
  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
  </body>
</html>

yet while using npm start to start it the console just throws errors

Failed to load resource: the server responded with a status of 404 (Not Found)
http://localhost:3000/app/main.js Failed to load resource: the server responded with a status of 404 (Not Found)
localhost/:16 Error: Error: XHR error (404 Not Found) loading http://localhost:3000/app/main.js(…)(anonymous function) @ localhost/:16
3content.js:191 NO OEMBED
http://localhost:3000/styles.css Failed to load resource: the server responded with a status of 404 (Not Found)

is there any build in server? Tutorial does not show any server set up . Why is this happening and how can i fix it?

thanks

Answer 1

change folder name "app.components.ts" to "app.component.ts" and inside main.ts change "Appcomponent" to "AppComponent". it should be written CamelCase

Angular2 server connect

1 个答案: