Just use facades in service providers.

app/Providers/RouteServiceProvider.php

@@ -2,7 +2,7 @@
 
 namespace App\Providers;
 
-use Illuminate\Routing\Router;
+use Illuminate\Support\Facades\Route;
 use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
 
 class RouteServiceProvider extends ServiceProvider
@@ -19,25 +19,23 @@ class RouteServiceProvider extends ServiceProvider
     /**
      * Define your route model bindings, pattern filters, etc.
      *
-     * @param  \Illuminate\Routing\Router  $router
      * @return void
      */
-    public function boot(Router $router)
+    public function boot()
     {
         //
 
-        parent::boot($router);
+        parent::boot();
     }
 
     /**
      * Define the routes for the application.
      *
-     * @param  \Illuminate\Routing\Router  $router
      * @return void
      */
-    public function map(Router $router)
+    public function map()
     {
-        $this->mapWebRoutes($router);
+        $this->mapWebRoutes();
 
         //
     }
@@ -47,12 +45,11 @@ class RouteServiceProvider extends ServiceProvider
      *
      * These routes all receive session state, CSRF protection, etc.
      *
-     * @param  \Illuminate\Routing\Router  $router
      * @return void
      */
-    protected function mapWebRoutes(Router $router)
+    protected function mapWebRoutes()
     {
-        $router->group([
+        Route::group([
             'namespace' => $this->namespace, 'middleware' => 'web',
         ], function ($router) {
             require app_path('Http/routes.php');