templateUrl does not work for me

Question

I use the seed structure as per angular.io get started project. Everything OK so far.

Now I wanted to change the top component to have a view from a separated file a

Answer 1

Add moduleId: module.id in the @Component decorator. If you don't have that then Angular 2 will be looking for your files at the root level.

import {Component} from 'angular2/core';

@Component({
  selector: 'my-app',
  moduleId: module.id,
  templateUrl: 'app.component.html'
})

export class AppComponent { }  

Check this article