role or permission not working in vuetify

[peterramsis]

role or permission not working in vuetify

<template v-slot:activator="{ on, attrs }"> <v-btn color="primary" dark class="mb-2" v-bind="attrs" v-on="on" v-permission="'add users'" > New Item </v-btn> </template>
if I write in out template like this working fine

<v-btn color="primary" dark class="mb-2" v-bind="attrs" v-on="on" v-permission="'add users'" > New Item </v-btn>