Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ObjectComparator" not found in C:\Apache24_x64\htdocs\ipad\vendor\phpspec\prophecy\src\Prophecy\Comparator\ProphecyComparator.php:17 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ipad\vendor\phpspec\prophecy\src\Prophecy\Comparator\ProphecyComparator.php on line 17