title: PrimeNG p-footer is not a known element error in angular 2
body: <p>I am new on using PrimeNG and I need a confirmation dialog box. I read the documentation about confirmation dialog and implemented it on my component.</p>
  
  <p>my-component.ts</p>
  
  <pre><code>import { ConfirmDialogModule, ConfirmationService } from 'primeng/primeng';
  </code></pre>
  
  <p>my-component.html</p>
  
  <pre><code> &lt;p-confirmDialog header="Order Confirmation" icon="fa fa-question-circle" width="425" #cd&gt;
       &lt;p-footer&gt;
          &lt;button type="button" pButton icon="fa-close" label="No" (click)="cd.reject()"&gt;&lt;/button&gt;
          &lt;button type="button" pButton icon="fa-check" label="Yes" (click)="cd.accept()"&gt;&lt;/button&gt;
       &lt;/p-footer&gt;
   &lt;/p-confirmDialog&gt;
  </code></pre>
  
  <p>app.module.ts</p>
  
  <pre><code>import { ConfirmDialogModule, ConfirmationService } from 'primeng/primeng'; 
  
  @NgModule({
    declarations: [
    ],
    imports: [
      BrowserModule,
      ConfirmDialogModule,
      FormsModule,
      ReactiveFormsModule,
      HttpModule,
      AppRoutingModule
    ],
    providers: [ConfirmationService],
    bootstrap: [AppComponent]
  })
  export class AppModule { }
  </code></pre>
  
  <p>Anything that I missed that triggers the error? Please enlighten me.</p>