Fatal error: Uncaught Error: Class "Behat\Mink\Driver\CoreDriver" not found in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/behat/mink-selenium2-driver/src/Selenium2Driver.php:31 Stack trace: #0 {main} thrown in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/behat/mink-selenium2-driver/src/Selenium2Driver.php on line 31