( ! ) Deprecated: Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument::__construct(): Implicitly marking parameter $indexAttribute as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php on line 32

( ! ) Deprecated: Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument::__construct(): Implicitly marking parameter $defaultIndexMethod as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php on line 32

( ! ) Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Argument\IteratorArgument" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php on line 19
( ! ) Error: Class "Symfony\Component\DependencyInjection\Argument\IteratorArgument" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php on line 19
Call Stack
#	Time	Memory	Function	Location
1	0.0195	377152	{main}( )	...\TaggedIteratorArgument.php:0