Message in Chinese (Traditional) (中文(繁體))
無法將延伸項目 '<var>X</var>' 新增至此項目。請確認 system.serviceModel/extensions/<var>Y</var> 的延伸集合中是否已登錄該項目。
Unlocalized message
Extension element '<var>X</var>' cannot be added to this element. Verify that the extension is registered in the extension collection at system.serviceModel/extensions/<var>Y</var>.
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