Missing References in UWP when installing Xamarin Forms Maps

If you install Xamarin Forms Maps (last stable version) with Nu Get Console and you restore Nu Get Packages then I find this missing (Yellow triangle) references in my UWP Project :

<SDKReference Include="Bing.Maps.Xaml, Version=1.313.0825.0">
  <Name>Bing Maps for C#, C++, or Visual Basic</Name>
</SDKReference>
<SDKReference Include="Microsoft.VCLibs, Version=12.0">
  <Name>Microsoft Visual C++ 2013 Runtime Package for Windows</Name>
</SDKReference>

Why ? Am I the only one ?