c# - AssociationType 'Committee_Member_Contact' 具有参照完整性约束，无法映射

Question

我得到 AssociationType 'Committee_Member_Contact' 具有参照完整性约束，无法映射到 EDMX 文件中。在我的数据库中，PK和FK之间没有关系。Committee_Member表可以有多个Contact's. I have created参照约束as 'Contact是主要的和Committee_Member从属的。

public partial class Committee_Member
{
    public byte[] Committee_Member_Id { get; set; }          
    public byte[] Contact_Id { get; set; }           
    public string Committee_Code { get; set; }
    public string External_Source_Name { get; set; }
    public Nullable<System.DateTime> External_Last_Update { get; set; }         

    public virtual Contact Contact { get; set; }
}
public partial class Contact
{
   public Contact()
   {
        this.Committee_Member_SPE = new HashSet<Committee_Member_SPE>();
   }
   public byte[] Contact_Id { get; set; }
   public string First_Name { get; set; }
   public string Last_Name { get; set; }
   ....
   public virtual ICollection<Committee_Member_SPE> Committee_Member_SPE { get; set; }
}

有什么解决办法吗？