Fatal error: Uncaught Error: Class 'Vich\UploaderBundle\Handler\AbstractHandler' not found in C:\xampp\htdocs\ApiSigestWin\1.20.01.20.4\vendor\vich\uploader-bundle\Handler\DownloadHandler.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.20.01.20.4\vendor\vich\uploader-bundle\Handler\DownloadHandler.php on line 14