Fatal error: Uncaught Error: Class 'Symfony\Component\Form\AbstractExtension' not found in C:\xampp\htdocs\plugins\Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationExtension.php:21
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\plugins\Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationExtension.php on line 21