Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\Factory' not found in /home/noct-c/www/tanakahashi/vendor/phpspec/prophecy/src/Prophecy/Comparator/Factory.php:21
Stack trace:
#0 {main}
thrown in /home/noct-c/www/tanakahashi/vendor/phpspec/prophecy/src/Prophecy/Comparator/Factory.php on line 21