Fatal error: Uncaught Error: Class "PHPCompatibility\AbstractComplexVersionSniff" not found in C:\Apache24\htdocs\Quantum\vendor\phpcompatibility\php-compatibility\PHPCompatibility\AbstractRemovedFeatureSniff.php:20 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\Quantum\vendor\phpcompatibility\php-compatibility\PHPCompatibility\AbstractRemovedFeatureSniff.php on line 20