I'm getting this error when starting the HomeComponent. The configuration is specified inside the environment file and is correct. Could I be injecting something incorrectly? Do I need to inject anything else?. These are the files used. Please I need help, thank you very much Error: ERROR Error [NullInjectorError]: R3InjectorError(Standalone[_HomeComponent])[_AuthenticationService -> _AuthenticationService -> _AngularFireAuth -> InjectionToken angularfire2.app.options -> InjectionToken angularfire2.app.options] app.config.ts export const appConfig: ApplicationConfig = { providers: [ provideZoneChangeDetection({ eventCoalescing: true }), provideRouter(routes), provideClientHydration(), provideHttpClient(withFetch()), provideFirebaseApp(() => initializeApp(environment.firebaseConfig)), provideAuth(() => getAuth()), provideFirestore(() => getFirestore()), ] }; home.component.ts import { Component } from '@angular/core'; import { RouterLink } from '@angular/router'; import { TranslateModule } from '@ngx-translate/core'; import { AuthenticationService } from '../auth/authentication.service'; @Component({ selector: 'app-home', standalone: true, imports: [TranslateModule, RouterLink], templateUrl: './home.component.html', }) export class HomeComponent { constructor(private auth: AuthenticationService) { } signOut() { this.auth.signOut().subscribe({ next: () => { }, error: error => { } }); } } authentication.service.ts import { Injectable } from '@angular/core'; import { AngularFireAuth } from '@angular/fire/compat/auth'; import { FirebaseError } from 'firebase/app'; import { catchError, from, Observable, throwError } from 'rxjs'; @Injectable({ providedIn: 'root' }) export class AuthenticationService { constructor(private auth: AngularFireAuth) { } signIn(email: string, password: string): Observable<any>{ return from(this.auth.signInWithEmailAndPassword(email, password)) .pipe( catchError((error: FirebaseError) => throwError(() => console.log('Errore')) ) ); } signUp(email: string, password: string): Observable<any>{ return from(this.auth.createUserWithEmailAndPassword(email, password)).pipe( catchError((error: FirebaseError) => throwError(() => console.log('Errore')) ) ); } //exc... } Continue reading...