warning console

[jakteixeira]

on the console displays this warning

[vue-router] router.addRoutes() is deprecated and has been removed in Vue Router 4. Use router.addRoute() instead.
warn @ vue-router.esm.js?8c4f:16

and

[vue-router] 's tag prop is deprecated and has been removed in Vue Router 4. Use the v-slot API to remove this warning: https://next.router.vuejs.org/guide/migration/#removal-of-event-and-tag-props-in-router-link.

what do i fix?