Are these samples intend to not support VS 2015 at all ?

When I create a project in Visual Studio 2015, this happens.

and If I think to create one in 2017 and open it in 2015, it doesn't work. please check this screenshot

Please tell me how I can sort out this. Is there anyway to work on VS 2015 without upgrading to 2017,

[behelit]

It doesn't work in 2017 either

@behelit Is your problem somehow related to PCL, if yes, check this https://montemagno.com/how-to-convert-a-pcl-library-to-net-standard-and-keep-git-history/