Inheritance issue with Missing type map configuration or unsupported mapping

Question

I have four classes: Application, CaperData, ApplicationDTO, CaperDataDTO

Application is inheritting from CaperData as follows:

public class Application : CaperData

And in ApplicationDTO, we have a property of type CaperDataDTO.

CaperData and CaperDataDTO are identical on the properties level.

Application and ApplicationDTO are also identical with 1 difference that the first one extends from CaperData but the second one does not extend from CaperDataDTO, instead, it has the property CaperDataDTO inside of it.

I need to map all the clases together in autoMapper

Application with ApplicationDTO and vice versa

CaperData with CaperDataDTO and vice versa

using AutoMapper;

public class Application : CaperData
{
    // Properties and methods specific to Application
}

public class CaperData
{
    // Properties and methods specific to CaperData
}

public class ApplicationDTO
{
    public CaperDataDTO CopData { get; set; }
    // Other properties and methods specific to ApplicationDTO
}

public class CaperDataDTO
{
    // Properties and methods specific to CaperDataDTO
}

How can I do the mapping configuration in MappingProfile?

What I tried so far is:

CreateMap<CaperData, CaperDataDTO>();
CreateMap<CaperDataDTO, CaperData>();

CreateMap<Application, ApplicationDTO>()
    .ForMember(dest => dest.CapData, opt => opt.MapFrom(src => src));


CreateMap<ApplicationDTO, Application>()
    .ForMember(dest => dest.AppName, opt => opt.MapFrom(src => src.CapData.AppName))
    .ForMember(dest => dest.ErrorMessage, opt => opt.MapFrom(src => src.CapData.ErrorMessage))
    .ForMember(dest => dest.Reason, opt => opt.MapFrom(src => src.CapData.Reason));

When I try to map, as follows:

List<Application> apps = _appRepo.GetData();
var mappedApps = _mapper.Map<ApplicationDTO>(apps );

I am receiving the following exception:

Missing type map configuration or unsupported mapping.

Mapping types:
List`1 -> ApplicationDTO
System.Collections.Generic.List`1[[DAL.Model.Application, DAL, Version=3.12.0.0, Culture=neutral, PublicKeyToken=null]] -> Client.Models.ApplicationDTO`