diff --git a/src/RouterCollector.php b/src/RouterCollector.php
index 968f65f..96ac679 100644
--- a/src/RouterCollector.php
+++ b/src/RouterCollector.php
@@ -6,19 +6,16 @@ namespace Kiri\Router;
 
 
 use Closure;
-use Exception;
 use Kiri;
 use Kiri\Router\Base\NotFoundController;
 use Kiri\Router\Constrict\RequestMethod;
 use Kiri\Di\Inject\Container;
-use Psr\Container\ContainerExceptionInterface;
 use Psr\Container\ContainerInterface;
-use Psr\Container\NotFoundExceptionInterface;
-use ReflectionException;
 use ReflectionMethod;
 use Throwable;
 use Traversable;
 use Kiri\Router\Base\Middleware;
+use Kiri\Router\Format\ResponseFormat;
 
 
 /**
@@ -58,12 +55,6 @@ class RouterCollector implements \ArrayAccess, \IteratorAggregate
     protected array $httpHandler = [];
 
 
-    /**
-     * @var array<string, object>
-     */
-    protected array $controllers = [];
-
-
     /**
      * @var Handler
      */
@@ -91,8 +82,7 @@ class RouterCollector implements \ArrayAccess, \IteratorAggregate
     {
         $found = di(NotFoundController::class);
 
-        $reflection  = new ReflectionMethod($found, 'fail');
-        $this->found = new Handler([$found, 'fail'], $reflection);
+        $this->found = new Handler([$found, 'fail'], [], ResponseFormat::class);
     }