Свободное использование NHibernate + AutoMap + Observable

Я новичок в Fluent NHibernate, но был привлечен автоматическим картированием и другим отличным набором функций платформы. У меня проблемы с настройкой ObservableCollection, я рыскал по сети и пробовал много разных вещей, и все они привели меня к той же ошибке:

FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

 ---> FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

 ---> System.ArgumentException: Cannot create an instance of FluentNHibernate.Automapping.AutoMapping`1[uNhAddIns.WPF.Collections.Types.ObservableListType`1[T]] because Type.ContainsGenericParameters is true.
   at System.RuntimeType.CreateInstanceCheckThis()
   at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
   at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
   at FluentNHibernate.Automapping.AutoMapper.ApplyOverrides(Type classType, IList`1 mappedMembers, ClassMappingBase mapping) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoMapper.cs:line 28
   at FluentNHibernate.Automapping.AutoMapper.MergeMap(Type classType, ClassMappingBase mapping, IList`1 mappedMembers) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoMapper.cs:line 41
   at FluentNHibernate.Automapping.AutoMapper.Map(Type classType, List`1 types) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoMapper.cs:line 176
   at FluentNHibernate.Automapping.AutoPersistenceModel.AddMapping(Type type) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoPersistenceModel.cs:line 185
   at FluentNHibernate.Automapping.AutoPersistenceModel.CompileMappings() in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoPersistenceModel.cs:line 149
   at FluentNHibernate.Automapping.AutoPersistenceModel.Configure(Configuration configuration) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Automapping\AutoPersistenceModel.cs:line 175
   at FluentNHibernate.Cfg.AutoMappingsContainer.Apply(Configuration cfg) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\AutoMappingsContainer.cs:line 84
   at FluentNHibernate.Cfg.MappingConfiguration.Apply(Configuration cfg) in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\MappingConfiguration.cs:line 66
   at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 128
   --- End of inner exception stack trace ---
   at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 139
   at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 108
   --- End of inner exception stack trace ---
   at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 113
   at ToDoIt2.Model.Document.<Initialize>b__0() in C:\data\svn\WPF\vs2010\ToDoIt2\Application\Model\Document.cs:line 54
   at ToDoIt2.App.DisplayException(NoArgsDelegate z) in C:\data\svn\WPF\vs2010\ToDoIt2\Application\App.xaml.cs:line 66

Это подходящая строка:

---> System.ArgumentException: Cannot create an instance of 
FluentNHibernate.Automapping.AutoMapping`1[uNhAddIns.WPF.Collections.Types.ObservableListType`1[T]]
because Type.ContainsGenericParameters is true.

Вот класс, который я пытаюсь сопоставить:

public class Item {
    public virtual int ItemID { get; set; }
    public virtual string Title { get; set; }
    public virtual ObservableListType<string> Children { get; set; }
}

Использование uNhAddIns.WPF.Collections.Types.ObservableListType из uNhAddIns.

Вот мой AutoMapping:

this.FluentConfig = Fluently.Configure()
                    .Mappings(m => m.AutoMappings
                        .Add(AutoMap
                            .Assemblies(new ToDoIt2.DB.AutoMapping(), 
                                Assembly.GetExecutingAssembly(),
                                Assembly.GetAssembly(typeof(ObservableListType<>))
                            )
                            .IgnoreBase<pklib.DataObject>()
                            .Conventions.Add<myPrimaryKeyConvention>()
                            .Conventions.Add<myForeignKeyConvention>()
                        ));  

Ответ от @Diego

Объект домена необходимо изменить на:

public class Item {
    public virtual int ItemID { get; set; }
    public virtual string Title { get; set; }
    public virtual ICollection<string> Children { get; set; }
}

Свободная конфигурация изменена на:

this.FluentConfig = Fluently.Configure()
        .ExposeConfiguration(cfg => cfg.SetProperty(NHibernate.Cfg.Environment.CollectionTypeFactoryClass,
             typeof(WpfCollectionTypeFactory).AssemblyQualifiedName))
        .Mappings(m => m.AutoMappings
            .Add(AutoMap
                .Assemblies(new ToDoIt2.DB.AutoMapping(), 
                    Assembly.GetExecutingAssembly(),
                    Assembly.GetAssembly(typeof(ObservableListType<>))
                )
                .IgnoreBase<pklib.DataObject>()
                .Conventions.Add<myPrimaryKeyConvention>()
                .Conventions.Add<myForeignKeyConvention>()
            ));