Fatal error: Uncaught Error: Class "Symfony\Component\Form\AbstractType" not found in /var/www/html/bacalec-lamp/public_html/yan/projet-disc-otech-back/Back/src/Form/SongType.php:16 Stack trace: #0 {main} thrown in /var/www/html/bacalec-lamp/public_html/yan/projet-disc-otech-back/Back/src/Form/SongType.php on line 16