Message in Chinese (Traditional) (中文(繁體))
'<var>X</var>' 不是有效的活動執行回呼。'<var>Y</var>' 所用的執行回呼必須是 '<var>Y</var>' 上的執行個體方法。
Unlocalized message
'<var>X</var>' is not a valid activity execution callback. The execution callback used by '<var>Y</var>' must be an instance method on '<var>Y</var>'.
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