Deprecated: Symfony\Component\HttpKernel\Event\ControllerEvent::setController(): Implicitly marking parameter $attributes as nullable is deprecated, the explicit nullable type must be used instead in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\http-kernel\Event\ControllerEvent.php on line 54

Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\KernelEvent" not found in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\http-kernel\Event\ControllerEvent.php:28 Stack trace: #0 {main} thrown in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\symfony\http-kernel\Event\ControllerEvent.php on line 28