( ! ) Deprecated: Symfony\Component\DependencyInjection\Argument\ServiceLocator::__construct(): Implicitly marking parameter $serviceTypes as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\ServiceLocator.php on line 27

( ! ) Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\ServiceLocator" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\ServiceLocator.php on line 21
( ! ) Error: Class "Symfony\Component\DependencyInjection\ServiceLocator" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\ServiceLocator.php on line 21
Call Stack
#	Time	Memory	Function	Location
1	0.0008	372224	{main}( )	...\ServiceLocator.php:0