Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-migrations-bundle\Collector\MigrationsCollector.php:14 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-migrations-bundle\Collector\MigrationsCollector.php on line 14