Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/www/aes-demo/api-8.0.0#316/src/DependencyInjection/PdfToolsApiExtension.php:8 Stack trace: #0 {main} thrown in /home/www/aes-demo/api-8.0.0#316/src/DependencyInjection/PdfToolsApiExtension.php on line 8