XAML Unity 3D error

I was overviewing the example: http://docs.unity3d.com/Documentation/Manual/wp8-unity-interaction.html .
When I downloaded the .zip, it worked. However following it step by step keeps giving me the same error:

Code (csharp):

1.  
2.  private void Unity_Loaded()
3.         {
4.             var sphereScript = UnityEngine.Object.FindObjectOfType<SphereScript>();
5.             sphereScript.SphereStateChanged += SphereStateChanged;
6.             SphereStateChanged(sphereScript.IsSphereMoving);
7.         }
8.  
9.         private void SphereStateChanged(bool currentSphereState)
10.         {
11.             Dispatcher.BeginInvoke(() =>
12.             {
13.                 SphereStateTextBlock.Text = currentSphereState ? "Sphere is moving" : "Sphere is stopped";
14.             });
15.         }

Code (csharp):

1. var sphereScript = UnityEngine.Object.FindObjectOfType<SphereScript>();

keeps giving me a non-generic method cant be used with type error.

The SphereScript was copy and pasted in. I have attached the camera. I switched platform to windows phone 8 before building it. What am I doing wrong?

 

MainPage.xaml.cs :
Error 1 The non-generic method 'UnityEngine.Object.FindObjectOfType(System.Type)' cannot be used with type arguments C:\*\*\Documents\Unity\Testing\Export\Testing\MainPage.xaml.cs 56 51 Testing

 

Thank You! That worked!