Error NG8001: 'rooter-outlet' is not a known element

Hello, I am woking on angular 13.1.3. When adding the routing I have this error NG8001: ‘rooter-outlet’ is not a known element.

This is my “app.module.ts” code:

import { NgModule } from ‘@angular/core’;
import { BrowserModule } from ‘@angular/platform-browser’;

import { AppRoutingModule } from ‘./app-routing.module’;
import { AppComponent } from ‘./app.component’;
import { MonPremierComponentComponent } from ‘./mon-premier-component/mon-premier-component.component’;
import { AppareilComponent } from ‘./appareil/appareil.component’;
import {FormsModule} from ‘@angular/forms’;

import {AppareilService } from ‘./services/appareil.service’;
import { AuthComponent } from ‘./auth/auth.component’;
import { AppareilViewComponent } from ‘./appareil-view/appareil-view.component’;
import {Routes,RouterModule} from ‘@angular/router’;
import { RouterTestingModule } from ‘@angular/router/testing’;

const appRoutes : Routes=
[
{path:‘appreils’,component:AppareilViewComponent},
{path:‘auth’,component:AuthComponent},
{path:’’,component:AppareilViewComponent}
];
@NgModule({
declarations: [
AppComponent,
MonPremierComponentComponent,
AppareilComponent,
AuthComponent,
AppareilViewComponent
],
imports: [
BrowserModule,
AppRoutingModule,
FormsModule,
RouterTestingModule,
RouterModule,
RouterModule.forRoot(appRoutes)
],
providers: [AppareilService],
bootstrap: [AppComponent]
})
export class AppModule { }

and my “app.component.html” code:

Can you help me please?