vue-i18n not use vuetify components strings

i try to use vue-i18n to translate my application. I use also vuetify and the vue cli.

At the moment i have the languages englisch and german. Here is my project structure and code.

main.js

import Vue from "vue";
import i18n from "./plugins/i18n";
import vuetify from "./plugins/vuetify";

Vue.config.productionTip = false;

new Vue({
  vuetify,
  i18n,
  render: (h) => h(App),
}).$mount("#app");

plugins/i18n.js

import Vue from "vue";
import VueI18n from "vue-i18n";
import de from "@/locale/de";
import en from "@/locale/en";

Vue.use(VueI18n);

const messages = {
  de: de,
  en: en,
};

const i18n = new VueI18n({
  locale: "de",
  fallbackLocale: "en",
  messages,
});

export default i18n;

locale/en.js

export default {
    hello: "hello",
};

locale/de.js

export default {
    hello: "Hallo",
    $vuetify: {
        dataIterator: {
          rowsPerPageText: "Einträge pro Seite:",
          pageText: "{0}-{1} von {2}",
        },
    }
};

plugins/vuetify.js

import Vue from "vue";
import Vuetify from "vuetify/lib/framework";
import i18n from "./i18n";

Vue.use(Vuetify);

export default new Vuetify({
  lang: {
    t: (key, ...params) => i18n.t(key, params),
  },
});

All works fine with the hello translation, but the vuetify components not working as expected. I would like to add a translation to german for few vuetify components in the future. But at the moment a would like to use the original names from vuetify. And that is not working.

For example, the v-select component looks like:

And other components also not working.

What i do wrong?

You are missing default vuetify component locales. you should provide it by rewriting them in your locales or import it at the beginning of each locale file.

locale/en.js

import { en } from 'vuetify/lib/locale'

export default {
  $vuetify: { ...en },
  hello: "hello",
};

locale/de.js

import { de } from 'vuetify/lib/locale'

export default {
  hello: "Hallo",
  $vuetify: {
    ...de,
    dataIterator: {
      rowsPerPageText: "Einträge pro Seite:",
      pageText: "{0}-{1} von {2}",
    },
  }
};