I got following logs Liunx , unable to open browser. I use Xvfb to run firefox. I've updated katalon and firefox driver to the latest version. Can some help on this. Thanks. 2018-09-19 11:39:42 - [TEST_STEP][ERROR] - Start listener action : sampleBeforeTestCase: Unable to open browser (Root cause: java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, see https://github.com/mozilla/geckodriver. The latest version can be downloaded from https://github.com/mozilla/geckodriver/releases)2018-09-19 11:39:42 - [TEST_STEP][ERROR] - Statement - Else: Unable to open browser (Root cause: java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, see https://github.com/mozilla/geckodriver. The latest version can be downloaded from https://github.com/mozilla/geckodriver/releases)2018-09-19 11:39:42 - [TEST_STEP][ERROR] - openBrowser: Unable to open browser (Root cause: java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, see https://github.com/mozilla/geckodriver. The latest version can be downloaded from https://github.com/mozilla/geckodriver/releases)2018-09-19 11:39:43 - [MESSAGE][INFO] - Opening browser2018-09-19 11:39:43 - [MESSAGE][INFO] - Starting 'Firefox' driver2018-09-19 11:39:43 - [MESSAGE][INFO] - Action delay is set to 0 seconds
os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.32-754.3.5.el6.x86_64', java.version: '1.8.0_181'Driver info: driver.version: unknown)