Deprecated: Symfony\Component\HttpKernel\EventListener\DumpListener::__construct(): Implicitly marking parameter $connection as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\bookteca\vendor\symfony\http-kernel\EventListener\DumpListener.php on line 32

Deprecated: {closure:Symfony\Component\HttpKernel\EventListener\DumpListener::configure():48}(): Implicitly marking parameter $label as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\bookteca\vendor\symfony\http-kernel\EventListener\DumpListener.php on line 48

Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\Apache24\htdocs\bookteca\vendor\symfony\http-kernel\EventListener\DumpListener.php:26 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\bookteca\vendor\symfony\http-kernel\EventListener\DumpListener.php on line 26