Hi All,

Using Umbraco 5 MVC3 Project Template of visual studio, I have created a controller "Default1" 

and created my model "Person" with the PersonSchema as bellow:

   public class Person : TypedEntity
    {
        public Person()
        {
            this.SetupFromSchema<PersonSchema>();
        }

        public string Name
        {
            get
            {
                return this.Attributes["name"].DynamicValue;
            }
            set
            {
                this.Attributes["name"].DynamicValue = value;
            }
        }
    }

    public class PersonSchema : EntitySchema
    {
        public PersonSchema()
        {
            this.Setup("person", "Person");
            this.SchemaType = "content";

            this.AttributeDefinitions.Add(new AttributeDefinition
            {
                Id = new Umbraco.Framework.HiveId(Guid.Parse("{6DDE61B9-859F-4857-B02C-9E548BFBCB9D}")),
                Name = "Name",
                Alias = "name",
                AttributeType = AttributeTypeRegistry.Current.GetAttributeType(StringAttributeType.AliasValue),
                AttributeGroup = FixedGroupDefinitions.GeneralGroup,
            });
        }
    }

The entity added successfully using the code below:

  public ActionResult Index()
        {
            var hive = RoutableRequestContext.Application.Hive.GetAllReadWriteProviders().FirstOrDefault();

            var hWriter = RoutableRequestContext.Application.Hive.GetWriter<IContentStore>(new Uri("content://"));

            using (var uow = hWriter.Create())
            {
                Person person = new Person()
                {
                    Name = "Test"
                };

                uow.Repositories.AddOrUpdate(person);

                uow.Complete();
            }

            return View();
        }

but when I'm trying to retrieve this attribute I got the following error :

"Cannot add a 'name' attribute to this collection as it does not exist in the schema"

this is my code:

     public ActionResult Get()
        {
            var hReader = RoutableRequestContext.Application.Hive.GetReader<IContentStore>();

            using (var t = hReader.CreateReadonly())
            {
                var persons = t.Repositories.GetAll<Person>();
            }

            return View();
        }

Please advice