Fatal error: Uncaught Error: Class 'SebastianBergmann\CodeCoverage\Driver\Xdebug' not found in /mnt/www/fss/casefiling/vendor/phpunit/php-code-coverage/src/Driver/HHVM.php:18 Stack trace: #0 {main} thrown in /mnt/www/fss/casefiling/vendor/phpunit/php-code-coverage/src/Driver/HHVM.php on line 18