当两者都不是主键时的一对一关系

我有两个实体需要映射在一起。因为它们都是数据库视图，所以从技术上讲它们都不是主键。

 [Table("Name")]
    public class MemberInfo
    {
        [Key]
        [Column("id")]
        public string MemberId { get; set; }
        [Column("first_name")]
        public string FirstName { get; set; }
        [Column("last_name")]
        public string LastName { get; set; }
        public string Designation { get; set; }
        [Column("full_name")]
        public string FullName { get; set; }
    }

public class ChangeLog
    {
        [Column("ID")]
        public int ID { get; set; }
        [Column("asset_id")]
        public virtual Asset AssetID { get; set; }
        [Column("member_id")]
        public int MemberID { get; set; }
        public virtual MemberInfo MemberInfo { get; set; }
        [Column("comment")]
        public string Comment { get; set; }
        [Column("createdDT")]
        public DateTime CreatedDT { get; set; }
    }

如果我尝试从ChangeLog访问MemberInfo，我得到一个错误说:

A relationship multiplicity constraint violation occurred: An EntityReference can have no more than one related object, but the query returned more than one related object. This is a non-recoverable error.

MemberInfo的MemberID字段是唯一的。我需要能够通过MemberInfo属性从ChangeLog访问MemberInfo属性。