Xamarin Forms app, Session ID field disabled. Also Previewer does not have an ID

[wierzba3]

When I configure my android app to create a new instance of LoadApplication(new Xamarin.Forms.Player.App()); instead of new App(), it launches the Xamarin forms interface prompting me for session ID. The input field is disabled i.e. I can't enter any characters into it. I can press the connect button though (with empty input) and it says "successfully connected". Then nothing happens.

Additionally, when I go to View -> other windows -> Xamarin.Forms previewer, it pops up the window with a blank android and ios mobile screen , but there is no session ID present.

I'm using VS 2015 and windows 10 x64