没有这样的文档，但在文档中搜索 UIViewControllerHierarchyInconsistencyException 示例会在 UIViewController 的 API 参考中产生一个结果，它准确地解释了它是什么。一点也不难。
There's no such document but a search of the docs for your UIViewControllerHierarchyInconsistencyException example produced a hit inside UIViewController's API reference, which explains exactly what it is. Not difficult at all.
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没有这样的文档，但在文档中搜索 UIViewControllerHierarchyInconsistencyException 示例会在 UIViewController 的 API 参考中产生一个结果，它准确地解释了它是什么。一点也不难。
There's no such document but a search of the docs for your UIViewControllerHierarchyInconsistencyException example produced a hit inside UIViewController's API reference, which explains exactly what it is. Not difficult at all.