Fatal error: Uncaught Error: Class "Symfony\Component\Console\Helper\Helper" not found in D:\Apache24\www\qilu_sap\back-end\vendor\symfony\console\Helper\ProcessHelper.php:26 Stack trace: #0 {main} thrown in D:\Apache24\www\qilu_sap\back-end\vendor\symfony\console\Helper\ProcessHelper.php on line 26