Using external vue instance in v-app?

Question

Vue.js

Help me figure it out, today I attached vuetify to the project and for some reason the second vue instance is now undefined in the v-app application
The structure (simplified) is as follows:

<div id="app">
  <v-app>
    {{ bus.someVar }}
  </v-app>
</div>

var bus = new Vue({ data: { someVar: 1 } });
var router = new VueRouter({ });
var vm = new Vue({ el: '#app', router: router });

When trying to use the bus.someVar variable, it says that it is undefined. When used outside of v-app, everything is fine. The router also uses the bus variable, so it's below it. What is wrong here? bus is here to store the state, all ajax + socket requests are also made from it

Answer 1

the problem was solved by updating vue to version v2.5.15

Answer 2

Well, in honor of what should the bus be available here?
Did you drop it somewhere? In the same data.