Question

Whenever I debug my windows phone app, whether it be on my phone or emulator I always get this Exception. How can I resolve this issue?

PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;

I’m still a beginner with this.

Answer 1

That’s not a exception.

What I guess is the exception, is that the PhoneApplicationService isn’t created. So you’re getting a NullReferenceException.

Either add PhoneApplicationService = new PhoneApplicationService() on the line above, or ensure following XAML are in your App.xaml

<Application.ApplicationLifetimeObjects>
    <!--Required object that handles lifetime events for the application-->
    <shell:PhoneApplicationService 
        Launching="Application_Launching" Closing="Application_Closing" 
        Activated="Application_Activated" Deactivated="Application_Deactivated"/>
</Application.ApplicationLifetimeObjects>