问错误: InvalidPipeArgument：“[Object]”用于primeng表中管道'SlicePipe‘

EN

<p-table [value]="filteredRestaurants" [paginator]="true" [rows]="10">
  <ng-template pTemplate="header">
    <tr>
      <th>Name</th>
      <th>Address</th>
      <th>Cuisine Types</th>
      <th>Rating</th>
      <th>Avialability</th>
    </tr>
  </ng-template>
  <ng-template pTemplate="body" let-restaurant>
    <tr>
      <td>{{ restaurant.name }}</td>
      <td>{{ restaurant.adress.city }}</td>
      <td></td>
      <td>{{ restaurant.starRating }}</td>
      <td></td>
    </tr>
  </ng-template>
</p-table>

  export class AppComponent {
  postCodes: any[] = [];
  selectedPostCode: string;
  filteredRestaurants: any;
  constructor(private mapboxService: MapboxService, private http: HttpClient) {}
  title = 'just-eat-angular';
  headers = {
    headers: new HttpHeaders({
      'Content-Type': 'application/json',
    }),
  };
getResults() {
    return this.http
      .post(
        environment.baseUrl + '/PostCodeSearch/GetRestaurantsByPostCode',
        JSON.stringify(this.selectedPostCode),
        this.headers
      )
      .subscribe((r) => {
        console.log(r);
        this.filteredRestaurants = r;
      });
  }
}