Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in I:\www\picman\vendor\symfony\debug-bundle\DependencyInjection\DebugExtension.php:27 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\debug-bundle\DependencyInjection\DebugExtension.php on line 27