Cannot create portable class library project using Xamarin.Android/Xamarin.iOS

Question

I cannot create a new portable class library project that is designed for either the Xamarin.Android framework or the Xamarin.iOS framework. When I do this, an error message appears stating that there are no functionalities available that are portable between the selected frames, regardless of the other frameworks that I have chosen (for example, Windows 7.5 or higher, for example, Stuart Lodge selects in its videos "MvvmCross Video Days").

Ultimately, I would like to use MvvmCross with it, and it seems that some updates of either Visual Studio or the Xamarin framework violated my existing setup - it was used to work with Mono mods, but then something changed and it is bigger does not work. I created a new virtual machine for my installation to make sure it is clean (my host system also has 2010, and I was worried that something had broken between the two versions).

(If that helps)

In a virtual machine, I run:

-Visual Studio 2012 Ultimate Update 4 (v4.50709)

-Projector linker 2012 (v1.5); this has been suggested in some Xamarin docs about PCL

-Nuget v2.8.50313.31

-Xamarin.Android v4.12.2001

-Xamarin.iOS v1.10.47

SO-, XML Framework: MonoTouch MonoForAndroid

: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETPortable\v4.5\Profile\Profile104\SupportedFrameworks

, VM : -Profile104 v4.5 -Profile104 v4.0, "Mono for Android" "MonoTouch", , "".

- , ?

!

: Xamarin.Android Xamarin.iOS PCL

.NET Framework 4.5, Silverlight 5, Windows Phone 8,.Net Windows Store, Xamarin.Android Xamarin.iOS( ), .

Answer 1

PCL :

.NET Framework 4.5
Silverlight 4 and higher
Windows Phone 7 and higher
.NET for Windows Store apps

, Xamarin Windows Phone 8 Silverlight 5 Xamarin.iOS Xamarin.Android ( , ).

Profile104 Xamarin, , MonoTouch MonoDroid, Xamarin.iOS Xamarin.Android.

, - Xamarin.Android Xamarin.iOS PCL - PCL.