Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ObjectComparator" not found in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\sebastian\comparator\src\MockObjectComparator.php:18 Stack trace: #0 {main} thrown in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\sebastian\comparator\src\MockObjectComparator.php on line 18