Message in Chinese (Simplified) (中文(简体))
ActivityDelegate、ActivityAction 或 ActivityFunc 的处理程序不可以是对树中现有活动的引用。“<var>Z</var>”已经引用了父级为“<var>Y</var>”的委托的处理程序活动“<var>X</var>”。
Unlocalized message
The Handler for an ActivityDelegate, ActivityAction, or ActivityFunc must not be a reference to an activity already existing in the tree. The Handler activity '<var>X</var>' of a delegate parented by '<var>Y</var>' is already referenced by '<var>Z</var>'.
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