Make working properly metisMenu in vue app

Hello,
I want to use SB Admin 2 template from https://github.com/dpwilhelmsen/sb-admin-2-bootstrap-4
In my Laravel 5.7 / Vuejs 2.6 / Vuex 3.1/ Bootstrap 4.3 app and I take some steps for it :
As it is based in metismenu In console I run next commands :

npm install --save metismenu npm i popper npm audit fix
Code (markup):

In resources/js/app.js I included metismenu:

require('./bootstrap'); //require('popper'); /* If to uncomment line above in console I got lot of errors :...
Code (JavaScript):

Make working properly metisMenu in vue app

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