Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ObjectComparator" not found in /home/deborapsol/laravel/vendor/sebastian/comparator/src/MockObjectComparator.php:17 Stack trace: #0 {main} thrown in /home/deborapsol/laravel/vendor/sebastian/comparator/src/MockObjectComparator.php on line 17