The instance of entity type '' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked

Hi I am using Abp Framework with .net 7 and I have this service that has one to many relationship in the dto of the entity i have list and when I send rquest from swagger to this sevice i get this error The instance of entity type 'B' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked. When attaching existing entities, ensure that only one entity instance with a given key value is attached. Consider using 'DbContextOptionsBuilder.EnableSensitiveDataLogging' to see the conflicting key values. This is my model ` public class A: AuditedAggregateRoot { public required string Name { get; set; } public virtual ICollection Bs{ get; set; } = new List(); } public class TaxAddressIdentity : AuditedAggregateRoot { public required string Phone { get; set; } public required Guid AId { get; set; } public virtual A A { get; set; } } ` And this is my dto `public class CreateUpdateADto: EntityDto { public string Name { get; set; } public ICollection Bs{ get; set; } }` And this is the service `public interface IAAppService : ICrudAppService< ADto, Guid, AGetListInput, CreateUpdateADto, CreateUpdateADto> { } public class AAppService : CrudAppService, IAAppService { }` And this is the mapping i am using in side the file ProjectNameApplicationAutoMapperProfile CreateMap(); CreateMap(MemberList.Source); can you give me any hekp please? i try every thing but still git the same error

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