MVC3中的复合外键

Question

我正在尝试在我的MVC3模型中使用复合键，但我无法构建它。谁能发现我哪里出错？我已经设法在普通的SQL Server中构建它，所以我知道它是有效的。添加PhonePair模型时，它无法构建PhonePair控制器

非常感谢

public class Installation
{
    [Key]
    [Column(Order = 0)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    public int InstallationID { get; set; }

    public string Name { get; set; }

}


public class TagGuest
{
    [Key]
    [Column(Order = 0)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    public int TagGuestID { get; set; }

    [Key]
    [Column(Order = 1)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    [ForeignKey("Installation")]
    public int InstallationID { get; set; }

    public virtual Installation Installation { get; set; }

    public string Description { get; set; }

}

public class TagLocation
{
    [Key]
    [Column(Order = 0)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    public int TagLocationID { get; set; }

    [Key]
    [Column(Order = 1)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    [ForeignKey("Installation")]
    public int InstallationID { get; set; }

    public virtual Installation Installation { get; set; }

    public string Description { get; set; }

    public int AudioID { get; set; }
    public virtual Audio Audio { get; set; }

}


public class Audio
{
    public int AudioID { get; set; }
    public string URL { get; set; }
}


public class PhonePair
{
    [Key]
    [Column(Order = 0)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    public string IPAddress { get; set; }
    [Key]
    [Column(Order = 1)]
    [DatabaseGenerated(DatabaseGeneratedOption.None)]
    [ForeignKey("TagGuest")]
    public int TagGuestID { get; set; }
    public int InstallationID { get; set; }
    public virtual TagGuest TagGuest { get; set; }


    public string Description { get; set; }
}