I can not start Chrome from Katalon

Please watch this movie as it starts up.

Also attach Chrome Driver’s settings capture, so please watch it together as well.

Remark 1: Firefox can start the browser normally.
Remark 2: Error message outputted when Chrome starts up is here

Where is it? I can not find it.

chromedriver.log would be helpful. see the following post how to get it.

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Your screen capture also tells us that you are on an API/WebService project, but doing UI testing.

Can you create a Web project and see if you have the same behaviour ?


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Sorry, I forgot to write error message.
I write now!

openBrowser("") FAILED.
com.kms.katalon.core.exception.StepFailedException: Unable to open browser with url: ‘’ (Root cause: org.openqa.selenium.WebDriverException: unknown error: Chrome failed to start: exited normally
(chrome not reachable)
(The process started from chrome location /Applications/Google Chrome.app/Contents/MacOS/Google Chrome is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
(Driver info: chromedriver=2.43.600229 (3fae4d0cda5334b4f533bede5a4787f7b832d052),platform=Mac OS X 10.14.2 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 2.55 seconds
Build info: version: ‘3.7.1’, revision: ‘8a0099a’, time: ‘2017-11-06T21:07:36.161Z’
System info: host: ‘ML-00280noMacBook-Pro.local’, ip: ‘fe80:0:0:0:86d:751d:c1a1:831d%en0’, os.name: ‘Mac OS X’, os.arch: ‘x86_64’, os.version: ‘10.14.2’, java.version: ‘1.8.0_181’
Driver info: driver.version: CChromeDriver)
at com.kms.katalon.core.keyword.internal.KeywordMain.stepFailed(KeywordMain.groovy:36)
at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.stepFailed(WebUIKeywordMain.groovy:65)
at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.runKeyword(WebUIKeywordMain.groovy:27)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.openBrowser(OpenBrowserKeyword.groovy:81)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.execute(OpenBrowserKeyword.groovy:67)
at com.kms.katalon.core.keyword.internal.KeywordExecutor.executeKeywordForPlatform(KeywordExecutor.groovy:56)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords.openBrowser(WebUiBuiltInKeywords.groovy:60)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords$openBrowser.call(Unknown Source)
at sample.run(sample:16)
at com.kms.katalon.core.main.ScriptEngine.run(ScriptEngine.java:194)
at com.kms.katalon.core.main.ScriptEngine.runScriptAsRawText(ScriptEngine.java:119)
at com.kms.katalon.core.main.TestCaseExecutor.runScript(TestCaseExecutor.java:328)
at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:319)
at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:298)
at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:290)
at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:224)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:106)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:97)
at com.kms.katalon.core.main.TestCaseMain$runTestCase$0.call(Unknown Source)
at TempTestCase1551863413770.run(TempTestCase1551863413770.groovy:22)

I confirmed can I boot chrome in Web project.
Unfortunate, result was as same as when I used API/WebService project.


Do you have any plugin installed in your chrome? Any plugin which you can not disable. For example, Skysea client view.

My previous experience may help.

Hello all.

I’ve seen this error a lot of times, at least in my Windows box.
I suspect (not 100% sure) there is a bug in how Katalon opens browser sessions: if a previously opened browser session keeps open while the test has finished, Katalon refuses to connect with it. In fact, this is what the stack trace says (


The solution in my case always has been: kill all chrome processes (the button with the selectable list of browses must not show any session for Chrome) and restart the test.

I hope it helps !!