Ошибка каскадных таблиц (Specify ON DELETE NO ACTION or ON UPDATE NO ACTION)

   
    [System.ComponentModel.DataAnnotations.Schema.Table("Orders")]
    public class OrderEntity : IDbEntity
    {
 
        public int Id { get; set; }
 
        public int TicketId { get; set; }
 
        [ForeignKey("TicketId")]
        public TicketSetupEntity TicketSetup { get; set; }
 
        public int PerformerId { get; set; }
 
        [ForeignKey("PerformerId")]
        public UserEntity Performer { get; set; }
 
        public string Comment { get; set; }
 
    }
 
 public class TicketSetupEntity : AbstractTicketEntity
    {
 
        public int FacilityConsumerId { get; set; }
 
        [ForeignKey("FacilityConsumerId")]
        public FacilityConsumerEntity FacilityConsumer { get; set; }
 
 
    }
 
    [System.ComponentModel.DataAnnotations.Schema.Table("Ticket")]
    public abstract class AbstractTicketEntity : IDbEntity
    {
        public int Id { get; set; }
 
        public int TypeId { get; set; }
 
        [ForeignKey("TypeId")]
        public TicketTypeEntity Type { get; set; }
 
        public string Description { get; set; }
 
        public DateTime Created { get; set; }
 
        public int CreatorId { get; set; }
 
 
        [ForeignKey("CreatorId")]
        public UserEntity Creator { get; set; }
 
        public int? AssignedId { get; set; }
 
        [ForeignKey("AssignedId")]
        public UserEntity Assigned { get; set; }
 
    }

 
modelBuilder.Entity<OrderEntity>().HasRequired(oo => oo.TicketSetup).WithMany().WillCascadeOnDelete(false);
modelBuilder.Entity<OrderEntity>().HasRequired(oo => oo.Performer).WithMany().WillCascadeOnDelete(false);