Automapper in MVC Core 2.0 services.AddAutoMapper() behavior - asp.net-core-mvc

Question

I have a solution like this:
MVC Core 2.0 application <-> Business Class library <-> Domain class library
(ViewModel) <- P1 -> (Dto) <-P2-> (Domain entity)
I created Automapper profiles in each MVC and Business projects for mapping ViewModel<->Dto (P1) and Dto<->Domain entity (P2). P1 profile&map is in MVC project, P2 profile&map is in Business library.
I then made a xUnit test project which creates a Dto object and sends it to a Business Service, inside the unit test on init I call:
Business.App.AutoMapperConfiguration.Configure();
And this unit test works exactly as expected.
I then do the same (I even copy/pasted code from Unit test) in the MVC controller and I get an error in mapping Dto to Domain entity:
Unmapped members were found. Review the types and members below...
I configured Automapper maps in startup.cs like this:
services.AddAutoMapper();
If I understand correctly this is supposed to traverse all assemblies for classes inheriting Profile and adding them to configuration.
Example map:
public class StrankaMap : Profile
{
public override string ProfileName => nameof(StrankaMap);
public StrankaMap()
{
CreateMap<SomeDto, SomeDomainEntity>().ReverseMap()
CreateMap<AnotherDto, AnotherDomainEntity>().ReverseMap()
}
}
I don't know what is the cause of this error if my unit test works but not from MVC app - I even copied the code from unit test to MVC controller and ran that. I'm suspecting an error in configuration. Do I assume correctly that inside Startup.cs adding services.AddAutoMapper(); is enough for this to work?
Solution (edit)
Apparently I misunderstood that the service.AddAutoMapper() will traverse all assemblies and search for Profile inherited classes. There might be a better solution but I used the one below, with the help of a hint from the comment #LucianBargaoanu.
I solved it like this:
// Startup.cs
services.AddAutoMapper(
typeof(Business.App.AutoMapperConfiguration),
typeof(MvcApp.Infrastructure.Configuration.AutoMapperConfiguration));
//And the AutoMapperConfiguration class:
namespace MvcApp.Infrastructure.Configuration
{
using AutoMapper;
public class AutoMapperConfiguration
{
public static void Configure()
{
Mapper.Initialize(x =>
{
x.AddProfile<Models.Mapping.StrankaMap>();
});
}
}
}

Answer 1

Apparently I misunderstood that the service.AddAutoMapper() will traverse all assemblies and search for Profile inherited classes. There might be a better solution but I used the one below, with the help of a hint from the comment #LucianBargaoanu.
I solved it like this:
// Startup.cs
services.AddAutoMapper(
typeof(Business.App.AutoMapperConfiguration),
typeof(MvcApp.Infrastructure.Configuration.AutoMapperConfiguration));
//And the AutoMapperConfiguration class:
namespace MvcApp.Infrastructure.Configuration
{
using AutoMapper;
public class AutoMapperConfiguration
{
public static void Configure()
{
Mapper.Initialize(x =>
{
x.AddProfile<Models.Mapping.StrankaMap>();
});
}
}
}