Could not get the reflection type for DbContext when using DI

[DEAN-Cherry]

I am using DI in a function called AddMyServices

    public static IServiceCollection AddMyServices(this IServiceCollection services)
    {
        services.AddScoped<ITestService, TestService>();
        return services;

    }

So that I can register all my Services in one function with builder.Services.AddMyServices(); in Program.cs
However, in this case, I cannot scaffold an api controller and get the following:

Could not get the reflection type for DbContext : Xxx.Data.XxxContext
at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.b__6_0()
at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.Execute(String[] args)
at Microsoft.VisualStudio.Web.CodeGeneration.CodeGenCommand.Execute(String[] args)

If I use builder.Services.AddScoped<ITestService, TestService>(); in Program.cs instead of the function, everything just works fine. And that's pretty weird.

I tried to:

• Rebuild the project
• Change the order of Injection

But the problem is still there.

---

Support Content

version

Entity Framework Core .NET Command-line Tools: 8.0.0
Target framework: .NET 8.0
Operating system: Win 11 23h2
IDE: Visual Studio 2022 17.8.3(latest)

code

Full def of ITestService & TestService

public interface ITestService
{
   public void Test(); 
}

public class TestService: ITestService
{
    public void Test()
    {
       Console.WriteLine("Test");
    }
}

[dylanbeattie]

I'm seeing the same - or very similar - behaviour; looks like calling extension methods from Main() means the aspnet-codegenerator tool can't construct the Program class to extract the DbContext settings.

#2623