implementing Lazy Initialization of Dependency Injection in ASP.NET Core 6 Leading to NullReferenceException
I'm migrating some code and I tried several approaches but none seem to work. I'm working with a `NullReferenceException` when trying to use lazy initialization in my ASP.NET Core 6 application... I have a service `MyService` that depends on another service `IDependencyService`, which is registered in the Startup class. Here’s a simplified version of my setup: ```csharp public class MyService : IMyService { private readonly Lazy<IDependencyService> _dependencyService; public MyService(Lazy<IDependencyService> dependencyService) { _dependencyService = dependencyService; } public void Execute() { var result = _dependencyService.Value.DoSomething(); // ... more logic } } ``` I register the services in `Startup.cs` like this: ```csharp public void ConfigureServices(IServiceCollection services) { services.AddTransient<IDependencyService, DependencyService>(); services.AddTransient<MyService>(); } ``` When I try to call the `Execute` method of `MyService`, I'm getting a `NullReferenceException` at the line where I access `_dependencyService.Value`. I thought that since I’m using `Lazy<T>`, it would only instantiate `IDependencyService` when accessed. I've tried changing the registration to `AddScoped` and `AddSingleton`, but the scenario continues. I also checked for any configuration issues in my DI setup but didn't find anything. What am I missing here? Is there a specific way to handle lazy dependencies in ASP.NET Core DI that I should be aware of? Any help would be greatly appreciated! My development environment is Ubuntu. Am I missing something obvious? My development environment is Ubuntu. Any ideas what could be causing this? I've been using C# for about a year now. Could this be a known issue?