[Vue warn]: Error in mounted hook: "TypeError: Cannot read properties of undefined (reading 'init')

这个错误是在Vue的mounted钩子函数中出现的，具体的错误信息是"TypeError: Cannot read properties of undefined (reading 'init')". 这个错误通常是由于访问了一个未定义的属性或方法引起的。根据引用的信息，你可能遇到了类似的问题，即无法读取一个未定义的属性$emit。为了解决这个问题，你可以按照引用中的建议，在main.js文件中加入如下代码：

Vue.prototype.$bus = new Vue()

这样就可以创建一个事件总线（event bus），用于在无关联的组件之间进行通信。然后，你可以按照引用中的方法，将emit函数的调用稍作修改：

this.$nextTick(function () {
  // DOM 现在更新了
  this.$bus.$emit('msg', route)
})

这样修改之后，应该就能够解决这个错误了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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