Message in Chinese (Traditional) (中文(繁體))![](/img/flags/zh-Hant.png)
無法將型別 '<var>Type Name</var>' 上屬性 '<var>Property Name</var>' 的傳回資料型別變更為 null。
Unlocalized message![](/img/flags/en.png)
The return data type of property '<var>Property Name</var>' on the type '<var>Type Name</var>' cannot be changed to null.
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