Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\framework-bundle\DependencyInjection\FrameworkExtension.php:176 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\framework-bundle\DependencyInjection\FrameworkExtension.php on line 176