use Which sweetalert version for this package uxweb/sweet-alert v2 in Laravel 5.6?

i use laravel 5.6

i install uxweb/sweet-alert v2 in bellow link:

uxweb/sweet-alert

and i add bellow library to my project :

sweetalert

i have not any error . but modal button is not show for close modal

Thakns for help

via Chebli Mohamed