Fatal error: Uncaught Error: Class 'Vich\UploaderBundle\Handler\AbstractHandler' not found in C:\xampp\htdocs\ApiSigestWin\vendor\vich\uploader-bundle\src\Handler\DownloadHandler.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\vendor\vich\uploader-bundle\src\Handler\DownloadHandler.php on line 13