Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/doctrine/dbal/lib/Doctrine/DBAL/Tools/Console/Helper/ConnectionHelper.php:13 Stack trace: #0 {main} thrown in /home/edmedu/www/edmeducation.co.kr/tw-dev/vendor/doctrine/dbal/lib/Doctrine/DBAL/Tools/Console/Helper/ConnectionHelper.php on line 13