Fatal error: Uncaught Error: Class "Composer\Semver\Constraint\MultiConstraint" not found in C:\xampp\htdocs\hannoole\POS\vendor\wikimedia\composer-merge-plugin\src\MultiConstraint.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\POS\vendor\wikimedia\composer-merge-plugin\src\MultiConstraint.php on line 24