Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in C:\xampp\htdocs\ffmpeg\vendor\symfony\cache\DataCollector\CacheDataCollector.php:27 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ffmpeg\vendor\symfony\cache\DataCollector\CacheDataCollector.php on line 27