Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\Comparator" not found in /home/ywbshareacopy/public_html/vendor/phpspec/prophecy/src/Prophecy/Comparator/ProphecyComparator.php:22 Stack trace: #0 {main} thrown in /home/ywbshareacopy/public_html/vendor/phpspec/prophecy/src/Prophecy/Comparator/ProphecyComparator.php on line 22