Fatal error: Uncaught Error: Interface 'Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface' not found in /home/devmecseminars/public_html/mec/vendor/symfony/validator/DependencyInjection/AddConstraintValidatorsPass.php:23
Stack trace:
#0 {main}
thrown in /home/devmecseminars/public_html/mec/vendor/symfony/validator/DependencyInjection/AddConstraintValidatorsPass.php on line 23