Can't create channel in UWP app in Release mode

[michalleptuch]

What version of gRPC and what language are you using?

Grpc.Net.Client 2.61.0
Grpc.Net.Client.Web 2.61.0

What operating system (Linux, Windows,...) and version?

Windows 11 23H2 22631.3155

What runtime / compiler are you using (e.g. .NET Core SDK version dotnet --info)

.NET Native (UWP)

What did you do?

I used this tutorial to create gRPC channel in UWP app: https://learn.microsoft.com/en-us/aspnet/core/grpc/netstandard. Everything works fine in Debug mode. The problem occurs when my app is installed using MSIX package (and works in Release mode).

var channel = GrpcChannel.ForAddress($"http://localhost:{port}", new GrpcChannelOptions
{
  HttpHandler = new GrpcWebHandler(new HttpClientHandler()),
});

return channel.CreateGrpcService<T>();

What did you expect to see?

Working channel

What did you see instead?

Exception message:

Unresolved P/Invoke method 'ntdll.dll!RtlGetVersion' from this method. Please look for this method in build warnings for more details. 

and stack trace:

at __Interop.ntdll_dll.RtlGetVersion(OSVERSIONINFOEX& versionInfo)
at Grpc.Net.Client.Internal.NtDll.DetectWindowsVersion(Version& version, Boolean& isWindowsServer) in /_/src/Grpc.Net.Client/Internal/NtDll.cs:line 40
at Grpc.Net.Client.Internal.OperatingSystem..ctor() in /_/src/Grpc.Net.Client/Internal/OperatingSystem.cs:line 77
at Grpc.Net.Client.Internal.OperatingSystem..cctor() in /_/src/Grpc.Net.Client/Internal/OperatingSystem.cs:line 34
at System.Runtime.CompilerServices.ClassConstructorRunner.EnsureClassConstructorRun(StaticClassConstructionContext* pContext) in f:\dd\ndp\fxcore\CoreRT\src\System.Private.CoreLib\src\System\Runtime\CompilerServices\ClassConstructorRunner.cs:line 92

Anything else we should know about your project / environment?

The problem occurs in NtDll.cs file invoked here:

grpc-dotnet/src/Grpc.Net.Client/Internal/OperatingSystem.cs

Line 77 in da20382

NtDll.DetectWindowsVersion(out var windowsVersion, out var windowsServer);

UWP platform cannot use RtlGetVersion method from ntdll.dll because it's not allowed.