Automapper error saying mapper not initialized

Question

I am using Automapper 5.2. I have used as a basis this link. I will describe, in steps, the process of setting up Automapper that I went through.

First

Answer 1

Better Solution would be to create extension method like this

  public static DestinationType CastObject(this SourceType obj)
            {
                var config = new MapperConfiguration(cfg =>
                cfg.CreateMap());

                var mapper = config.CreateMapper();

                var entity = mapper.Map(obj);

                return entity;
            }