Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\ObjectComparator' not found in /var/www/html/vendor/sebastian/comparator/tests/_fixture/TestClassComparator.php:13 Stack trace: #0 {main} thrown in /var/www/html/vendor/sebastian/comparator/tests/_fixture/TestClassComparator.php on line 13