Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in C:\Apache24_x64\htdocs\radar\vendor\symfony\http-kernel\DataCollector\EventDataCollector.php:28 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\radar\vendor\symfony\http-kernel\DataCollector\EventDataCollector.php on line 28