Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in C:\Apache24\htdocs\cwlms\vendor\symfony\http-kernel\DataCollector\RouterDataCollector.php:22 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwlms\vendor\symfony\http-kernel\DataCollector\RouterDataCollector.php on line 22