title: how to install vuetify 2.5.6 with vue 3?
body: <p>here's my code in main.js</p>
  <pre><code>import { createApp } from 'vue'
  import vuetify from './plugins/vuetify'
  import App from './App.vue'
  
  const app = createApp(App)
  
  app.use(vuetify)
  app.mount('#app')
  </code></pre>
  <p>and here's my code in vuetify.js</p>
  <pre><code>import Vue from 'vue'
  import Vuetify from 'vuetify/lib'
  
  Vue.use(Vuetify)
  
  export default new Vuetify({
      icons: {
          iconfont: 'mdi'
      }
  })
  </code></pre>
  <p><a href="https://i.stack.imgur.com/IJOvd.png" rel="nofollow noreferrer">here's the error message I received</a></p>