Behat\Mink\Exception\DriverException: Could not open connection: Unable to create new service: GeckoDriverService Build info: version: '3.6.0', revision: '6fbf3ec767', time: '2017-09-27T16:15:40.131Z' System info: host: 'gpc-rom', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.12.3cw', java.version: '1.8.0_131' Driver info: driver.version: unknown Caused by WebDriver\Exception\SessionNotCreated: Unable to create new service: GeckoDriverService Build info: version: '3.6.0', revision: '6fbf3ec767', time: '2017-09-27T16:15:40.131Z' System info: host: 'gpc-rom', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.12.3cw', java.version: '1.8.0_131' Driver info: driver.version: unknown
Selenium server does not know where to find the firefox binary (even though it is in $PATH and in the standard /usr/bin/firefox on Ubuntu 17.04)
Pass the firefox path when starting selenium server:
$ java -jar -Dwebdriver.gecko.driver=/usr/bin/firefox selenium-server-standalone-3.6.0.jar