Fatal error: Uncaught Error: Class "Symfony\Component\Process\ProcessBuilder" not found in /var/www/html/includes/php-ffmpeg/vendor/alchemy/binary-driver/tests/Alchemy/Tests/BinaryDriver/LTSProcessBuilder.php:10 Stack trace: #0 {main} thrown in /var/www/html/includes/php-ffmpeg/vendor/alchemy/binary-driver/tests/Alchemy/Tests/BinaryDriver/LTSProcessBuilder.php on line 10