Fatal error: Uncaught Error: Class "PharIo\Version\AbstractVersionConstraint" not found in C:\xampp\htdocs\mflux\vendor\phar-io\version\src\constraints\SpecificMajorVersionConstraint.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\mflux\vendor\phar-io\version\src\constraints\SpecificMajorVersionConstraint.php on line 12