Visual Studio is having trouble creating a new Azure Function. Instead of the Azure Function icon, it's showing the C# icon

Just upgraded to Microsoft.Azure.Functions.Worker.Sdk 2.0.1 and Microsoft.Azure.Functions.Worker 2.0.0 and running into the same issue. I have the latest (4.0.6821) function core tools installed.

I have also got the same issue.

class Program
{
    static  void Main()
    {
        var host = Host.CreateDefaultBuilder() 
            .ConfigureFunctionsWorkerDefaults()
            .ConfigureServices((context, services) =>
            {
                services.AddLogging();                    
            })
            .Build();

        host.Run();
    }
}

Here is the local.settings.json:

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "Functions:Worker:HostEndpoint": "http://localhost:7276"    
  }
}

I am at a complete loss about this. The error I get is:

System.InvalidOperationException: 'Configuration is missing the 'HostEndpoint' information. Please ensure an entry with the key 'Functions:Worker:HostEndpoint' is present in your configuration.'

Any clues anyone?

SO the thing that fixed it for me was having these packages installed.

Specifically the

"Microsoft.Azure.Functions.Worker.Sdk"

These have made it work.

<PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.0.0" />    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.3.0" />    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.ServiceBus" Verrsion="5.22.1" />
 <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.1" />

@Matt Dillane that's precisely what broke it for me :-)

What fix it for me is ensuring that .ConfigureFunctionsWorkerDefaults() is the first thing done by the HostBuilder. Previously we had some custom wiring done first there and that was now causing issues after the package upgrade.