Unable to resolve service for type while attempting to activate

Question

I have one file Repository.cs that contains an interface and its implementation like so:

public interface IRepository

{
    IEnumerable

        

Answer 1

You have to add your implementation to DI (Dependeny Injection) section. For .Net Core Mvc, it would be like this:

 public void ConfigureServices(IServiceCollection services)
 {
   services.AddDbContext(options =>
    options.UseInMemoryDatabase()
   );
   services.AddScoped();

 }