复杂类型的导航属性（参考其他实体）不支持。您必须使用位置实体（拥有自己的表格），或从 Country $ c>位置（并添加由Steve Morgan提到的 [ComplexType] 属性。

Navigation properties (refering to other entities) on a complex type are not supported. You must either make your Location an entity (with its own table) or remove the navigation property Country from Location (and add the [ComplexType] attribute as mentioned by Steve Morgan).

修改

参考： http://msdn.microsoft.com/en-us/library/bb738472.aspx

复杂类型不能包含导航属性。

"Complex type cannot contain navigation properties."