Some services are not able to be construct

Controller

public class GetBanksController : ControllerBase
{
    private readonly IGetBanks _interfacegetbanks;
    public GetBanksController(IGetBanks interfacegetbanks)
    {
        _interfacegetbanks = interfacegetbanks;
    }
    public ActionResult GetBanks(GetBankRequest request)
    {
        GetBankResponse response = new GetBankResponse();
        try
        {
            response = _interfacegetbanks.GetBanks(request);
        }
        catch (Exception e)
        {
        }
        return Ok(response);
    }
}

Repository

public class GetBanksRepository :IGetBanks
{
    private readonly DAL.GetBanksDAL _objgetbankdal;
    public GetBanksRepository(DAL.GetBanksDAL objgetbankdal)
    {
        _objgetbankdal = objgetbankdal;
    }
    public GetBankResponse GetBanks(GetBankRequest request)
    {
        try
        {
            return _objgetbankdal.GetBankDAL(request);
        }
        catch (Exception e)
        {
            throw e;
        }
    }
}

Interface

public interface IGetBanks
{public GetBankResponse GetBanks(GetBankRequest request);
}

DAL

public GetBankResponse GetBankDAL(GetBankRequest _objgetbanksrequest)
{
    try
    {
        using (var con = new SqlConnection(this.Sqlconnection()))
        {
            GetBankResponse response = new GetBankResponse();
            con.Open();
            SqlCommand cmd = new SqlCommand("sp_GetBanks", con);
            cmd.Parameters.AddWithValue("@ChannelID", _objgetbanksrequest.ChannelID);
            cmd.Parameters.AddWithValue("@ReferenceID", _objgetbanksrequest.ReferenceID);
            cmd.CommandType = CommandType.StoredProcedure;
            SqlDataReader dr = cmd.ExecuteReader();
            while (dr.Read())
            {
                response.BankNames = Convert.ToString(dr["BankNames"]);
                response.BankURL = Convert.ToString(dr["BankURL"]);
            }
            con.Close();
            return response;
        }
    }
}

Startup.cs

public void ConfigureServices(IServiceCollection services)
{           
    services.AddScoped<IGetBanks, GetBanksRepository>();
    services.AddControllers();
}

Program.cs

public static void Main(string[] args)
{
    CreateHostBuilder(args).Build().Run();// getting error as "Some services are not able to be constructed (Error while//validating the service descriptor 'ServiceType: Interface.IGetBanks Lifetime://Transient ImplementationType: Repositories.GetBanksRepository': Unable to resolve service for type 'DAL.GetBanksDAL' while attempting to
}

can anyone assist me?

Thanks