[Vuejs]-Vuetify says that This dependency was not found

You’re importing from 'vuetify' as it is in Vue Official Documentation example (https://v1.vuetifyjs.com/en/guides/a-la-carte).
Change it to 'vuetify/lib'.

Example:

import {
Vuetify, // required
VApp, // required
VNavigationDrawer,
VFooter,
VToolbar,
transitions,
} from 'vuetify/lib';