c# - Automapper and Autofac -

i trying automapper play nice autofac in asp.net mvc application.

i have followed instructions in answer this: autofac 3 , automapper

however fails on first call _mapper.map<>(...)

autofac setup this:

builder.registertype<entitymappingprofile>().as<profile>();  builder.register(ctx => new configurationstore(new typemapfactory(), mapperregistry.mappers))     .asimplementedinterfaces()     .singleinstance()     .onactivating(x =>     {         foreach (var profile in x.context.resolve<ienumerable<profile>>())         {             x.instance.addprofile(profile);         }     });  builder.registertype<mappingengine>().as<imappingengine>(); 

and in business layer have service this:

public class linkservice : ilinkservice {     private readonly ilinkrepository _linkrepository;     private readonly imappingengine _mapper;     public linkservice(ilinkrepository linkrepository, imappingengine mapper)     {         _linkrepository = linkrepository;         _mapper = mapper;      }      public ienumerable<linkentity> get()     {         var links = _linkrepository.get().tolist();         return _mapper.map<ienumerable<link>, ienumerable<linkentity>>(links);     }      public linkentity getbyid(int id)     {         var link = _linkrepository.getbyid(id);         return _mapper.map<link, linkentity>(link);     } } 

the call _mapper.map<ienumerable<link>, ienumerable<linkentity>> fails with:

missing type map configuration or unsupported mapping.

any ideas might going wrong?

you're missing creating mapper, create map link linkentity in entitymappingprofile:

  internal class entitymappingprofile :profile {     protected override void configure()     {         base.configure();         this.createmap<link, linkentity>();     } }