Servicestack validation

[Ermias]

I have a model

[Validator(typeof(ContractValidator))]

[Route("/contracts", "POST")]

public class Contract

{

public int ContractID{get; set;}

public string ContractNumber{get;set;}

}

I also have a validation class for the model above.

 public class ContractValidator : AbstractValidator<Contract>

    {

        public ContractValidator()

        {

            RuleFor(x => x.ContractNumber).Length(0, 10);

        }

    }

I also have a class to map a 'GET' request:

[Route("/contracts/{ContractID}", "GET")]

public class GetContract

  {

     public int ContractID { get; set; }

  }

...and a service:

public class ContractService : ServiceStack.ServiceInterface.Service

{

public object Get(GetContract request)

        {

            IContractRepository repository = new ContractRepository();

            return repository.GetById(request.ContractID);

            

        }

public object Post(Contract request)

        {

            IContractRepository repository = new ContractRepository();

            repository.Save(request);

            //return request; 

        }

}

Now in my Razor view to edit a contract object I have

@inherits ViewPage<Contract>

.

.

.

But the problem is I'm getting the following error when I try to save and there is a model validation error:

Unable to cast object of type 'ServiceStack.ServiceInterface.ServiceModel.ErrorResponse' to type 'DTO.Contract'

Can someone please let me know how to handle this?

Thanks,

Ermias.