I'm starting to thing that VS 2015 is not terribly compatible with Xamarin. I've had a number of issues crop up since I installed it.
Currently I'm trying to install Xamarin.Forms.Maps into the PCL project of a brand new project. I'm running into two issues doing this. One I can't add Xamarin.Forms in nugget and secondly I can't add Xamarin.Forms.Maps
I keep getting this error or one similar. Same thing if I try to add the latest Xamarin Forms 1.5
Could not install package 'Xamarin.Forms 1.3.3.6323'. You are trying to install this package into a project that targets 'portable-net45+dnxcore50+win+wp80+MonoAndroid10+xamarinios10+MonoTouch10', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.
I can however add these packages into the droid project of my solution. I checked the profile of my PCL and it is 78. I also checked my nugget extension in Xamarin Studio and it says it's the latest version.
The machine I'm doing this on is a reformatted Windows 10 pc with just vs2015 and Xamarin Studio installed.