This was working on VS2015 RC.
Select target 'Windows Phone 8'. Select 'Device'.
Right Click on project -> select 'Deploy' or Click on 'Debug' in toolbar
Error: 2>------ Deploy started: Project: XXXX, Configuration: Debug Windows Phone 8 ------ 2>No Windows Phone 8 emulators installed. Please install Visual Studio 2013 with the Windows Phone 8 tools selected to install the emulators.
Build has been canceled.
I didn't select emulator ???
Thanks