Why DI RouterState in standalone app triggers NullInjectorError

I am getting NullInjectorError error in brand new angular app. I have just generated this app as a standalone angular app (ng new StandaloneApp). In the AppComponent's constructor I have added RouterState parameter:

constructor(private routerState : RouterState) {

  }

That was enough to break the app. It generates runtime error shown below. I have seen a similar question asked on the forum but without any satisfactory answer or solution. Am I missing something? (The app has app.config.ts class including provideRouter(routes))

RROR NullInjectorError: R3InjectorError(Environment Injector)[RouterState -> RouterState]: 
  NullInjectorError: No provider for RouterState!
    at NullInjector.get (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:1636:21)
    at R3Injector.get (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:3018:27)
    at R3Injector.get (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:3018:27)
    at ChainedInjector.get (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:5289:32)
    at lookupTokenUsingModuleInjector (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:5632:31)
    at getOrCreateInjectable (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:5678:10)
    at Module.ɵɵdirectiveInject (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:11577:17)
    at NodeInjectorFactory.AppComponent_Factory [as factory] (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\src\app\app.component.ts:11:26)
    at getNodeInjectable (c:\ScheduleMeWorkspace\SubProjects\StandaloneApp\node_modules\@angular\core\fesm2022\core.mjs:5872:38)
    at createRootComponent (http://localhost:4200/@fs/C:/ScheduleMeWorkspace/SubProjects/StandaloneApp/.angular/cache/18.2.12/StandaloneApp/vite/deps/chunk-YJFJI4Y6.js?v=bfbbd37c:14668:31) {name: 'NullInjectorError', ngTempTokenPath: null, ngTokenPath: Array(2), stack: 'NullInjectorError: NullInjectorError: No prov…e/deps/chunk-YJFJI4Y6.js?v=bfbbd37c:14668:31)', message: 'R3InjectorError(Environment Injector)[Router…lInjectorError: No provider for RouterState!'}

You can get the RouterState using the routerState property of Router:

get routerState Source code

export class Child {
  name = 'Angular';
  private router = inject(Router);
  private acivatedRoute = inject(ActivatedRoute);

  ngOnInit() {
    console.log(this.router.routerState);
  }
}

If you want the state per sub route, you should access either the ActivatedRoute or ActivatedRouteSnapshot DI tokens.