'_elements.contains(element)': is not true.过去两天我在我的颤振项目中看到了这个错误，从一开始就工作得很好。我很抱歉这么说，但我对这个错误一无所知，但我想我错过了导致这个错误的东西。此外，当我热重新加载同一页面时，布局已填充，但会引发异常。
间歇性地，这也显示检测到 Duplicate GlobalKeys()，但一开始并非如此。
如果他们之前偶然发现这些错误，请有人帮助我。我真的不能写一个例子来重现同样的问题。非常感谢。
我已经给出了错误的详细信息如下：
Performing hot reload...
I/flutter (22248): ??? EXCEPTION CAUGHT BY WIDGETS LIBRARY
????????????????????????????????????????????????????????????
I/flutter (22248): The following assertion was thrown building
TickerMode(mode: disabled):
I/flutter (22248): 'package:flutter/src/widgets/framework.dart': Failed
assertion: line 1766 pos 12:
I/flutter (22248): '_elements.contains(element)': is not true.
I/flutter (22248):
I/flutter (22248): Either the assertion indicates an error in the framework
itself, or we should provide substantially
I/flutter (22248): more information in this error message to help you
determine and fix …