Build error - CsWinRT requieres Universal Windows Platform

[chatay]

running the .\build.ps1 and getting the below error. NET SDK 5.0 is already installed. any ideas?

EXEC : error : Could not find the Windows SDK in the registry [C:\Work\PersonelTraining\ping_1\Source\NETworkManager.Models\NETworkManager.Models.csproj]
C:\Users\cagat.nuget\packages\microsoft.windows.cswinrt\1.1.1\build\Microsoft.Windows.CsWinRT.targets(111,5): error MSB3073: The command ""C:\Users\cagat.nuget\packages\microsoft.windows.cswinrt\1.1.1\cswinrt.exe" @"C:\Work\PersonelTraining\ping_1\Source\NETworkManager.Models\obj\Release\net5.0-windows10.0.17763.0\win10-x64\Generated Files\cswinrt.rsp"" exited with code 1. [C:\Work\PersonelTraining\ping_1\Source\NETworkManager.Models\NETworkManager.Models.csproj]
C:\Work\PersonelTraining\ping_1\build.ps1 : Could not find dotnet release build. Is .NET SDK 5.0 or later installed?
At line:1 char:1

• .\build.ps1

•   + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,build.ps1
  

[BornToBeRoot]

You can check with dotnet --version in PowerShell if the latest version is used.

CsWinRT requires UWP Universal Windows Platform development to access modern APIs like Windows.Devices.WiFi. Maybe this is missing in your Visual Studio installation.

https://github.com/microsoft/CsWinRT

[chatay]

Universal Windows Platform development was missing, once I installed it, it runs without any errors. Thanks!