Error building the HostFx example

[johdav999]

I am trying to build the HostFx sample (https://github.com/dotnet/samples/tree/main/core/hosting)
but am getting the error below.
When opening the example I'm upgrading the Platform Toolset to v143 and the Windows SDK to 10.0.22621.1778

I have tried to clean the project, delete bin and obj folder and rebuild project with no result. Anyone know the reason and/or a possible solution?

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Assembly loaded during TaskRun: Microsoft.NuGet.Build.Tasks, Version=17.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (location: C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.Build.Tasks.dll, MVID: 7aa05f9d-a90d-4b04-8040-2d758974bac6, AppDomain: [Default])
1> Using "ResolveNuGetPackageAssets" task from assembly "C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.Build.Tasks.dll".
1> Task "ResolveNuGetPackageAssets"
1> Task Parameter:RuntimeIdentifier=win-x86
1> Task Parameter:IncludeFrameworkReferences=True
1> Task Parameter:
1> ContentPreprocessorValues=
1> rootnamespace
1> Value=NativeHost
1> assemblyname
1> Value=NativeHost.vs
1> fullpath
1> Value=C:\UE\hosting\src\NativeHost
1> outputfilename
1> Value=NativeHost.vs.exe
1> filename
1> Value=NativeHost.vs.vcxproj
1> Task Parameter:ContentPreprocessorOutputDirectory=Debug\NuGet
1> Task Parameter:ProjectLockFile=obj\project.assets.json
1> Task Parameter:ProjectLanguage=C++
1> Assembly loaded during TaskRun (Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets): Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed (location: C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Newtonsoft.Json.dll, MVID: f7499511-9334-484f-b6db-6825be2eac0d, AppDomain: [Default])
1> Assembly loaded during TaskRun (Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets): System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (location: C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll, MVID: 0cfb80c7-63d2-4fc1-af85-4f9d342b6d09, AppDomain: [Default])
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : Sequence contains no elements
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets.GiveErrorForMissingFramework()
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets.GetTargetOrAttemptFallback(JObject lockFile, Boolean needsRuntimeIdentifier)
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets.GetReferences(JObject lockFile)
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets.ExecuteCore()
1> C:\Program Files\Microsoft Visual Studio\2022\Professional\MSBuild\Microsoft\NuGet\17.0\Microsoft.NuGet.targets(198,5): error : at Microsoft.NuGet.Build.Tasks.ResolveNuGetPackageAssets.Execute()
1> Done executing task "ResolveNuGetPackageAssets" -- FAILED.

[vitek-karas]

I just tried it and it works for me... not sure what's happening.
I also upgraded the platform toolset and used the latest Windows SDK - and it builds correctly from VS. And then I can run it from the command line via dotnet run as well.

[vitek-karas]

Just based on the callstack - do you have .NET 6 installed on the machine - the sample is currently targeting .NET 6.

[johdav999]

Thanks for your answer. Yes, I have NET 6 installed. I also tried it on another PC with the same result. However running it from command line via dotnet run works.