Fatal error: Uncaught Error: Class "Symfony\Component\Process\Process" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\process\PhpProcess.php:26 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\process\PhpProcess.php on line 26