实体框架：不支持指定的方法

Code:

List<MemberClass> Members = myEntity.users
.Where(xXx => xXx.Status == m_Status && xXx.CompanyRef != m_CompanyRef 
    && xXx.userconfigs.FirstOrDefault().IsPublicProfile == true)
.Select(xXx => new MemberClass { 
    Username = xXx.Username, 
    FullName = xXx.Name + " " + xXx.Surname, 
    Name = xXx.Name, 
    Surname = xXx.Surname, 
    AccessName = xXx.useraccess.Name, 
    RID = xXx.RID, 
    Email = xXx.Email }).ToList();
List<MemberClass> Members = myEntity.us