Imported project not was not found

[HamburgerPlsdotexe]

I keep getting the following error whenever I try to build the project

Severity Code Description Project File Line Suppression State Error The imported project "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\16.0\Bin\Microsoft.CSharp.targets" was not found. Confirm that the expression in the Import declaration "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\16.0\Bin\Microsoft.CSharp.targets" is correct, and that the file exists on disk. MiFareReader.Desktop

[xavave]

to solve this, I added a new library class project in solution (here:Mifare.NET), and referenced each file from MiFare inside this new class library, and it worked

then referencing this new class lib into Samples/Reader/MifareReader.Desktop

attachment : working dll
Mifare.NET.dll.zip