Fatal error: Uncaught Error: Class 'Composer\Command\BaseCommand' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\flex\src\Command\UnpackCommand.php:29 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\flex\src\Command\UnpackCommand.php on line 29