Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /home/recabarr/appl_tracking/src/Plugin/AbstractPluginExtension.php:15 Stack trace: #0 {main} thrown in /home/recabarr/appl_tracking/src/Plugin/AbstractPluginExtension.php on line 15