Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in D:\xampp\htdocs\erp_api\vendor\symfony\http-kernel\Symfony\Component\HttpKernel\Tests\Fixtures\ExtensionPresentBundle\DependencyInjection\ExtensionPresentExtension.php:17 Stack trace: #0 {main} thrown in D:\xampp\htdocs\erp_api\vendor\symfony\http-kernel\Symfony\Component\HttpKernel\Tests\Fixtures\ExtensionPresentBundle\DependencyInjection\ExtensionPresentExtension.php on line 17