vuetify 3 中未显示对话框

我正在尝试将 vuetify 3.alpha 与 vue 3 一起使用。这些是我的文件：

Temp.vue（取自 vuetify示例）

<template>
  <div class="text-center">
    <v-dialog
      v-model="dialog"
      width="500"
    >
      <template v-slot:activator="{ on, attrs }">
        <v-btn
          color="red lighten-2"
          dark
          v-bind="attrs"
          v-on="on"
        >
          Click Me
        </v-btn>
      </template>

      <v-card>
        <v-card-title class="text-h5 grey lighten-2">
          Privacy Policy
        </v-card-title>

        <v-card-text>
          Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
        </v-card-text>

        <v-divider></v-divider>

        <v-card-actions>
          <v-spacer></v-spacer>
          <v-btn
            color="primary"
            text
            @click="dialog = false"
          >
            I accept
          </v-btn>
        </v-card-actions>
      </v-card>
    </v-dialog>
  </div>
</template>

<script>
  export default {
    data () {
      return {
        dialog: false,
      }
    },
  }
</script>

查看应用

<template>
  <v-app>
    <v-main>
        <Temp/>
    </v-main>
  </v-app>
</template>


<script lang="ts">
import { defineAsyncComponent, defineComponent, reactive, ref, Ref, watch, createApp, onMounted} from 'vue'
import Temp from './Temp.vue'

export default defineComponent({
    name: 'App',

    components: {
        Temp
    },

    setup () {

    },
   data () {
      return {

      }
    },
})

</script>

这就是我得到的：

问题是当我点击这个按钮时没有显示对话框。这是我的错误还是 alpha 版本中的错误？