Help Agents in Windows 8.1 Phone (Silverlight)

I am following this link for implementing ScheduledAgent in WP 8.1 Silverlight.

Steps: -

Edited WMAppManifest.xaml

:

<Tasks>
  <DefaultTask Name="_default" NavigationPage="/View/StartPage.xaml" />
  <ExtendedTask Name="BackgroundTask">
    <BackgroundServiceAgent Specifier="ScheduledTaskAgent" Name="ScheduledTaskAgent2" Source="ScheduledTaskAgent2" Type="ScheduledTaskAgent2.ScheduledAgent" />
  </ExtendedTask>
</Tasks>

      

        
        
        
      

    

Added new project ScheduledAgent with target version 8.1 .:

Now my class is ScheduledAgent

#define DEBUG_AGENT
using System;
using System.Diagnostics;
using System.Windows;
using Microsoft.Phone.Scheduler;
using Microsoft.Phone.Shell;

namespace ScheduledTaskAgent2
{
    public class ScheduledAgent : ScheduledTaskAgent
    {

         protected override void OnInvoke(ScheduledTask task)
         { 

#if DEBUG_AGENT
            ScheduledActionService.LaunchForTest(task.Name, TimeSpan.FromSeconds(60));
#endif
            NotifyComplete();         

          }
    }
}

      

        
        
        
      

    

My code to run the agent

public const string PeriodicTaskName = "ScheduledTaskAgent2";
private PeriodicTask _periodicTask;

    private void StartPeriodicAgent()
    {
        _isPeriodicTaskStarted = true;

        _periodicTask = ScheduledActionService.Find(PeriodicTaskName) as PeriodicTask;

        if (_periodicTask != null)
        {
            RemoveAgent(PeriodicTaskName);
        }

        _periodicTask = new PeriodicTask(PeriodicTaskName) {Description = "periodic task."};

        try
        {
            ScheduledActionService.Add(_periodicTask);

#if(DEBUG_AGENT)
            ScheduledActionService.LaunchForTest(PeriodicTaskName, TimeSpan.FromSeconds(60));
#endif
         }
         catch (Exception exception){ }
    }         

    private static void RemoveAgent(string name)
    {
       try
       {
           ScheduledActionService.Remove(name);
       }
       catch (Exception){}
    }

      

        
        
        
      

    

Now this is all I tried for the background agent. This does not call the method OnInvoke()

(at least in debug mode)

Note . I also added the Reference to ScheduledTaskAgent2 project.

Has anyone implemented ScheduleAgent in WP 8.1 (Silverlight)

Is it supported at all?