import Router from "next/router" ; import NProgress from "nprogress" ; import "nprogress/nprogress.css" ; export const Progress = ( ) => { Router . events . on ( "routeChangeStart" , ( ) => NProgress . start ( ) ) ; Router . events . on ( "routeChangeComplete" , ( ) => NProgress . done ( ) ) ; Router . events . on ( "routeChangeError" , ( ) => NProgress . done ( ) ) ; } ;