Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Part\DataPart" not found in C:\Xampp\www\0050467\ims-mobile\vendor_\symfony\mime\Part\MessagePart.php:22 Stack trace: #0 {main} thrown in C:\Xampp\www\0050467\ims-mobile\vendor_\symfony\mime\Part\MessagePart.php on line 22