Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in E:\xampp\htdocs\www\yunwei\qr250\vendor\symfony\mailer\DataCollector\MessageDataCollector.php:23 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\symfony\mailer\DataCollector\MessageDataCollector.php on line 23