Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Container" not found in /home/iotechtniu/ioacademy/var/cache/dev1/ContainerKl55w4s/App_KernelDevDebugContainer.php:17 Stack trace: #0 {main} thrown in /home/iotechtniu/ioacademy/var/cache/dev1/ContainerKl55w4s/App_KernelDevDebugContainer.php on line 17