Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\swiftmailer-bundle\DependencyInjection\SwiftmailerExtension.php:31 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\swiftmailer-bundle\DependencyInjection\SwiftmailerExtension.php on line 31