vue-cli with vuetify in codesandbox malfunctioning

Question

The same project that runs perfectly in my computer is giving me warnings in codesandbox. Why does this happens?

codesandbox:

github

user_6178832 · Answer

In your file plugins/vuetify.js

change the line

import Vuetify from "vuetify/lib";

to

import Vuetify from "vuetify";