無法使用型別 '<var>Type Name</var>' 的導覽屬性 '<var>Property Name</var>'，因為實體集 '<var>X</var>' 沒有指定的關聯集。

Message in Chinese (Traditional) (中文（繁體）)

Unlocalized message

Navigation property '<var>Property Name</var>' on type '<var>Type Name</var>' cannot be used because the entity set '<var>X</var>' does not have an association set specified for it.

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