title: Angular 2 Primeng Message Service not showing message
body: <p>Below predefined Primeng message service used to show popup notification</p>
  
  <pre><code>import { MessageService } from "primeng/components/common/messageservice
  
  @Component({
      selector: "student-wizard",
      providers: [MessageService],
      templateUrl: "student-wizard.component.html",
      styleUrls: ["student-wizard.component.css"]
  })
  
  constructor(
          private messageService: MessageService)
  {}
  </code></pre>
  
  <p>From HTML we are calling below method :</p>
  
  <pre><code> public hideDialog(): void {
          this.messageService.add({
              severity: "info", 
              summary: "Student Updation Terminated",
              detail: "No updation performed"
          });
          this.router.navigateByUrl("studentTask", { relativeTo: this.route });
      }
  </code></pre>
  
  <p>But, on execution there is no error and no popup message shown.</p>