( ! ) Deprecated: Symfony\Component\Security\Http\Event\SwitchUserEvent::__construct(): Implicitly marking parameter $token as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\print\vendor\symfony\security-http\Event\SwitchUserEvent.php on line 30

( ! ) Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\security-http\Event\SwitchUserEvent.php on line 24
( ! ) Error: Class "Symfony\Component\EventDispatcher\Event" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\security-http\Event\SwitchUserEvent.php on line 24
Call Stack
#	Time	Memory	Function	Location
1	0.0013	370712	{main}( )	...\SwitchUserEvent.php:0