NullInjectorError when using inject() in runInContext

Issue

The following code is triggering NullInjectorError when i'm calling @inject() in runInContext. This does not happen if the service is providedIn: 'root' or passed in the module providers.

Any idea why ?

@Injectable()
class Service {}

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css'],
  providers: [Service],
})
export class AppComponent {
  name = 'Angular ' + VERSION.major;

  public constructor(service: Service, injector: EnvironmentInjector) {
    console.log(service); // OK
    console.log(inject(Service)); //OK

    setTimeout(() => {
      injector.runInContext(() => {
        console.log(inject(Service)); //KO
      });
    }, 1000);
  }
}

Stackblitz

Solution

Per Angular#47566, this is currently as design but could be improved.

So wait & see.

Answered By - Matthieu Riegler