TypeError: parentComponent.ctx.deactivate is not a function

使用Vue3的keep-alive时，没有配置key导致

TypeError: parentComponent.ctx.deactivate is not a function

于是我们在App.vue 中 keep-alive中添加配置，

<template>
  <div id="app">
    <router-view v-slot="{ Component }">
      <keep-alive>
        <component :is="Component" v-if="$route.meta.keepAlive" :key="$route.path"/>
      </keep-alive>
      <component :is="Component" v-if="!$route.meta.keepAlive"/>
    </router-view>
  </div>
</template>

问题得到解决