Fatal error: Uncaught Error: Class "Symfony\Component\Console\Helper\Helper" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\console\Helper\QuestionHelper.php:35 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\console\Helper\QuestionHelper.php on line 35