Xamarin.Forms.Labs WP8

Hi there,

The controls of the Xamarin.Forms.Labs doesn't render in a WP8 project.
I'm creating a new project and include the Xamarin.Forms.Labs nuget package(stable only), create a page with a checkbox en and a chart for example
but on the windows phone it doesn't render anything, on the other hand on android is does render a checkbox.
I'm not getting any error, am i missing something?