Can't install a different way Laravel 8

[garethwatt]

-- app.js

window.Vue = require('vue').default;
¥import Calendar from 'v-year-calendar';
Vue.use(Calendar);

--- calendar.blade.php

 <template>
    <Calendar></Calendar>
</template>

--- console error
[Vue warn]: Unknown custom element: - did you register the component correctly? For recursive components, make sure to provide the "name" option.

(found in )