Angular 2 Error: Trying to access 'annotations' property of undefined variable causing TypeError

Where could I be making a mistake?

app.component.ts

import {Component} from 'angular2/core';
@Component({
  selector: 'my-app',
  template: `{{title}}`
})
export class App {
  title = "Angular 2 beta";
  constructor() { console.clear(); }
}

main.ts

import {bootstrap} from 'angular2/platform/browser';
import {AppComponent} from './app.component';

bootstrap(AppComponent);

The issue encountered is

EXCEPTION: TypeError: Cannot read property 'annotations' of undefined

Answer №1

The issue here is with the class name not aligning with what is being bootstraped. To clarify, rather than using

export class App { ... }

you should be using

export class AppComponent { ... }

Angular is searching for the annotations property within a class called AppComponent, but since such a class does not exist, the error is occurring.

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