类App\Http\UserMiddleware不存在

<?php

namespace App\Http\Middleware;


use Closure;
Use Auth;

class UserMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */

 public function handle($request, Closure $next)

 {

     if(auth::check() && Auth::user()->role->id == 2){

         return $next($request);

     }
  else {

         return redirect()->route('login');

     }
 }
}