Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Bundle\Bundle' not found in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-migrations-bundle\DoctrineMigrationsBundle.php:15 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-migrations-bundle\DoctrineMigrationsBundle.php on line 15