Fatal error: Uncaught Error: Interface "Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface" not found in /home/tubu/public_html/Drupal_CMS/cms/vendor/symfony/validator/DependencyInjection/AddValidatorInitializersPass.php:22 Stack trace: #0 {main} thrown in /home/tubu/public_html/Drupal_CMS/cms/vendor/symfony/validator/DependencyInjection/AddValidatorInitializersPass.php on line 22