Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'openDrawer')"

根据提供的引用内容，"Error in v-on handler: 'TypeError: Cannot read properties of undefined (reading 'openDrawer')" 这个错误的原因是尝试读取一个未定义的属性 'openDrawer'。根据引用中提到的两种情况，有可能是对象本身为空 undefined，或者是尝试取了不该取的属性。这个错误提示指示了代码中的一个问题，可能是在某个事件处理程序中，尝试读取 'openDrawer' 属性时发生了错误。为了解决这个问题，您可以检查在事件处理程序中是否正确定义了 'openDrawer' 属性，或者确认在读取属性之前确保对象不为空。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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