I have ,acOS big sur machine version 11.4, with safari version 14.1.1, but i still cant execute my Katalon Studio test cases on Safari as it gives me this error all the time :Caused by: org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:25201
Hi hnaveed,
Could you provide some detail info as stated in [TIP] How To Help Us Help You! ?
This bug is usually cause by outdated WebDriver, you could try updating that.
Hi Cebrail,
Could you clarify the question?
If you’re talking about WebDriver, current Katalon Studio only supports auto-updating for IE, Chrome, Firefox, and Edge.
See more in https://docs.katalon.com/katalon-studio/docs/update-or-downgrade-webdrivers.html#update-a-webdriver
Cheers,
Chris
Hi chrisstu,
Thanks for the answer. I am working with macOS and testing is Successful with Chrome. But I have a Problem with Safari and I think that it s because of the update
022-05-11 11:09:32.236 INFO c.k.katalon.core.main.TestCaseExecutor - --------------------
2022-05-11 11:09:32.239 INFO c.k.katalon.core.main.TestCaseExecutor - START Test Cases/a_Call_Cases/a_Login
2022-05-11 11:09:32.740 DEBUG testcase.a_Login - 1: openBrowser("")
2022-05-11 11:09:32.911 INFO c.k.k.core.webui.driver.DriverFactory - Starting ‘Safari’ driver
2022-05-11 11:09:32.924 INFO c.k.k.core.webui.driver.DriverFactory - Action delay is set to 0 milliseconds
ERROR: safaridriver could not launch because it is not configured
correctly or you need to authenticate. Re-run safaridriver(1) and
pass the ‘–enable’ flag to configure and/or authenticate.
For more information, consult the safaridriver(1) man page.
2022-05-11 11:09:53.272 ERROR c.k.k.core.keyword.internal.KeywordMain - 
Unable to open browser with url: ‘’ (Root cause: com.kms.katalon.core.exception.StepFailedException: Unable to open browser with url: ‘’
at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.stepFailed(WebUIKeywordMain.groovy:64)
at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.runKeyword(WebUIKeywordMain.groovy:26)
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:74)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords.openBrowser(WebUiBuiltInKeywords.groovy:64)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords$openBrowser.call(Unknown Source)
at a_Login.run(a_Login:22)
at com.kms.katalon.core.main.ScriptEngine.run(ScriptEngine.java:194)
at com.kms.katalon.core.main.ScriptEngine.runScriptAsRawText(ScriptEngine.java:119)
at com.kms.katalon.core.main.TestCaseExecutor.runScript(TestCaseExecutor.java:445)
at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:436)
at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:415)
at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:407)
at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:284)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:142)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:133)
at com.kms.katalon.core.main.TestCaseMain$runTestCase$0.call(Unknown Source)
at TempTestCase1652260169899.run(TempTestCase1652260169899.groovy:25)
Caused by: org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:46250
Build info: version: ‘3.141.59’, revision: ‘e82be7d358’, time: ‘2018-11-14T08:25:53’
System info: host: 'iMac11-xxxxxxxx, ip: ‘fe80:0:0:0:23:926b:5a9c:1790%en0’, os.name: ‘Mac OS X’, os.arch: ‘x86_64’, os.version: ‘10.16’, java.version: ‘1.8.0_275’
Driver info: driver.version: CSafariDriver
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at com.kms.katalon.selenium.driver.CSafariDriver.execute(CSafariDriver.java:20)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:213)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:131)
at org.openqa.selenium.safari.SafariDriver.(SafariDriver.java:81)
at org.openqa.selenium.safari.SafariDriver.(SafariDriver.java:63)
at com.kms.katalon.selenium.driver.CSafariDriver.(CSafariDriver.java:14)
at com.kms.katalon.core.webui.driver.DriverFactory.createNewSafariDriver(DriverFactory.java:430)
at com.kms.katalon.core.webui.driver.DriverFactory.startNewBrowser(DriverFactory.java:364)
at com.kms.katalon.core.webui.driver.DriverFactory.openWebDriver(DriverFactory.java:254)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword$_openBrowser_closure1.doCall(OpenBrowserKeyword.groovy:74)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword$_openBrowser_closure1.call(OpenBrowserKeyword.groovy)
at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.runKeyword(WebUIKeywordMain.groovy:20)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.openBrowser(OpenBrowserKeyword.groovy:81)
at com.kms.katalon.core.webui.keyword.builtin.OpenBrowserKeyword.execute(OpenBrowserKeyword.groovy:67)
at com.kms.katalon.core.keyword.internal.KeywordExecutor.executeKeywordForPlatform(KeywordExecutor.groovy:74)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords.openBrowser(WebUiBuiltInKeywords.groovy:64)
at com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords$openBrowser.call(Unknown Source)
at Script1644340830019.run(Script1644340830019.groovy:22)
… 11 more
Caused by: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:46250
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:247)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:165)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)