Fatal error: Uncaught Error: Class 'Symfony\Component\Validator\Mapping\Loader\LoaderChain' not found in /home/devmecseminars/public_html/mec/vendor/symfony/validator/Mapping/Loader/FilesLoader.php:23
Stack trace:
#0 {main}
thrown in /home/devmecseminars/public_html/mec/vendor/symfony/validator/Mapping/Loader/FilesLoader.php on line 23