Fatal error: Uncaught Error: Class "SebastianBergmann\Comparator\Comparator" not found in /var/www/html/usophy/vendor/phpspec/prophecy/src/Prophecy/Comparator/ClosureComparator.php:22
Stack trace:
#0 {main}
thrown in /var/www/html/usophy/vendor/phpspec/prophecy/src/Prophecy/Comparator/ClosureComparator.php on line 22