Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in D:\workspaces\liZiPingBack\vendor\symfony\validator\DataCollector\ValidatorDataCollector.php:30 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\validator\DataCollector\ValidatorDataCollector.php on line 30