Fatal error: Uncaught Error: Interface 'Symfony\Component\Mailer\MailerInterface' not found in E:\xampp\htdocs\www\yunwei\qr250\vendor\symfony\mailer\Mailer.php:26 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\symfony\mailer\Mailer.php on line 26