Fatal error: Uncaught Error: Class "SebastianBergmann\CodeCoverage\Driver\Xdebug" not found in C:\mywamp\sites\allsite\calcomposer\vendor\phpunit\php-code-coverage\src\Driver\HHVM.php:18 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\phpunit\php-code-coverage\src\Driver\HHVM.php on line 18