Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in /home/noct-c/www/tanakahashi/vendor/symfony/console/Helper/QuestionHelper.php:31 Stack trace: #0 {main} thrown in /home/noct-c/www/tanakahashi/vendor/symfony/console/Helper/QuestionHelper.php on line 31