Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Argument\IteratorArgument' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php:19 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\dependency-injection\Argument\TaggedIteratorArgument.php on line 19