Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in C:\Apache24_x64\htdocs\ex-vak\vendor\symfony\http-kernel\DataCollector\ExceptionDataCollector.php:25 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ex-vak\vendor\symfony\http-kernel\DataCollector\ExceptionDataCollector.php on line 25