Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\ObjectComparator" not found in I:\www\frameworks\Symfony\translation\vendor\phpspec\prophecy\src\Prophecy\Comparator\ProphecyComparator.php:20 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\translation\vendor\phpspec\prophecy\src\Prophecy\Comparator\ProphecyComparator.php on line 20