Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Container" not found in I:\www\picman\var\cache\dev\ContainerHPXxByH\App_KernelDevDebugContainer.php:17 Stack trace: #0 {main} thrown in I:\www\picman\var\cache\dev\ContainerHPXxByH\App_KernelDevDebugContainer.php on line 17