Fatal error: Uncaught Error: Class 'Symfony\Bridge\Doctrine\Middleware\Debug\DebugDataHolder' not found in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-bundle\Middleware\BacktraceDebugDataHolder.php:15 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\doctrine\doctrine-bundle\Middleware\BacktraceDebugDataHolder.php on line 15