Fatal error: Uncaught Error: Class "Symfony\Component\Mime\RawMessage" not found in D:\xampp\htdocs\0-template\ckfinder\core\connector\php\vendor\symfony\mime\Message.php:22 Stack trace: #0 {main} thrown in D:\xampp\htdocs\0-template\ckfinder\core\connector\php\vendor\symfony\mime\Message.php on line 22