Xamarin Forms shared project - Could not determine mandroid path!

Hi

I am getting the following 2 errors when I try to build a simple Xamarin.Forms Shared project.

Error 1 Could not determine mandroid path! Sample0306.Droid

Error 2 The "Xamarin.Android.Tasks.GetApiLevelFromFramework" task could not be loaded from the assembly C:\Program Files\MSBuild\Xamarin\Android\Xamarin.Android.Build.Tasks.dll. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. Sample0306.Droid

Could anyone help me identify and resolve this issue?

Regards
Anand