I want to map my model to exactly identical config. But always get this error:
Type Map configuration: Model -> Config
Property: Names ----> System.NullReferenceException : Object reference not set to an instance of an object.
cfg.CreateMap<Model, Config>().ForMember(x => x.Names, opt => opt.UseDestinationValue());
Both of Model and Config have values:
public class Model
{
public List<string> Names {get;set;}
}
public class Config
{
public List<string> Names {get;set;}
}
What am I doing wrong?