func start --csharp from Sample doesnt work

Describe the bug

`PS C:\git\semantic-kernel\samples\dotnet\KernelHttpServer> func start --csharp

MSBuild version 17.5.0+6f08c67f3 for .NET C:\git\semantic-kernel\dotnet\Directory.Build.targets : error : Could not resolve SDK “Microsoft.Build.CentralPackageVersions”. Exactly one of the probing messages below indicates why we could not resolve the SDK. Investigate and resolve that message to correctly specify the SDK. C:\git\semantic-kernel\dotnet\Directory.Build.targets : error : SDK resolver “Microsoft.DotNet.MSBuildWorkloadSdkResolver” returned null. C:\git\semantic-kernel\dotnet\Directory.Build.targets : error : Unable to find package Microsoft.Build.CentralPackageVersions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages C:\git\semantic-kernel\dotnet\Directory.Build.targets : error : MSB4276: The default SDK resolver failed to resolve SDK “Microsoft.Build.CentralPackageVersions” because directory “C:\Program Files\dotnet\sdk\7.0.202\Sdks\Microsoft.Build.CentralPackageVersions\Sdk” did not exist. C:\git\semantic-kernel\dotnet\Directory.Build.targets : error MSB4236: The SDK ‘Microsoft.Build.CentralPackageVersions/2.1.3’ specified could not be found. [C:\git\semantic-kernel\samples\dotnet\KernelHttpServer\KernelHttpServer.csproj]`

Expected behavior Function is started locally

Desktop (please complete the following information):

• OS: Windows 11
• IDE: VS CODE

[craigomatic]

Do you also have dotnet 6?

There is an unfortunate footnote in that Azure Functions require dotnet 6 to build:

See https://learn.microsoft.com/en-us/azure/azure-functions/dotnet-isolated-process-guide#supported-versions

[eduardogoncalves]

Hi @kboro, as the SDK is already installed, can you clear the NuGet cache: dotnet nuget locals all --clear

Then try to build and run the function again using the following command: func start --csharp

If the issue persists, you can try to delete the bin and obj folders of the project and rebuild it. Additionally, you can try to update or reinstall the .NET SDK and Visual Studio.