Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\symfony\console\Helper\QuestionHelper.php:34 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\symfony\console\Helper\QuestionHelper.php on line 34