Fatal error: Uncaught Error: Class 'Symfony\Component\Translation\Loader\FileLoader' not found in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/symfony/translation/Loader/IniFileLoader.php:19 Stack trace: #0 {main} thrown in /home/edmedu/www/hana-edu.co.kr/sf4l/vendor/symfony/translation/Loader/IniFileLoader.php on line 19