Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Helper\Helper' not found in D:\workspaces\liZiPingBack\vendor\doctrine\orm\lib\Doctrine\ORM\Tools\Console\Helper\EntityManagerHelper.php:16 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\doctrine\orm\lib\Doctrine\ORM\Tools\Console\Helper\EntityManagerHelper.php on line 16