Vuejs + webpack shows blank page after importing js file

Vuejs + webpack (development environment) shows blank page after importing core.min.js file inside Footer.vue file. console shows no error. To view the code of core.min.js check https://drive.google.com/file/d/1IYcH31j2lqh96ZlNgdXr6wnqrq2HAWCK/view Note:I only import core.min.js . App.vue <template> <div id=”app”> <div class=”page”> <app-header></app-header> <app-home></app-home> <app-footer></app-footer> </div> </div> </template> <script> export default { data () { return { msg: ‘Welcome…