Katlonc -RuntimeEngine(Empty Url)

When i run my test suite from Katlon Ide it works perfectly fine but
Whenever i run my test suite from command line i got this error:
Kindly see this and please give me an appropiate solution…
:x: 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:72)

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 com.saastack.automation.SignUp.doSignUp(SignUp.groovy:43)

at com.saastack.automation.SignUp.invokeMethod(SignUp.groovy)

at com.kms.katalon.core.main.CustomKeywordDelegatingMetaClass.invokeStaticMethod(CustomKeywordDelegatingMetaClass.java:50)

at IndividualWizard.run(IndividualWizard:21)

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:337)

at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:328)

at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:307)

at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:299)

at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:233)

at com.kms.katalon.core.main.TestSuiteExecutor.accessTestCaseMainPhase(TestSuiteExecutor.java:169)

at com.kms.katalon.core.main.TestSuiteExecutor.accessTestSuiteMainPhase(TestSuiteExecutor.java:142)

at com.kms.katalon.core.main.TestSuiteExecutor.execute(TestSuiteExecutor.java:91)

at com.kms.katalon.core.main.TestCaseMain.startTestSuite(TestCaseMain.java:157)

at com.kms.katalon.core.main.TestCaseMain$startTestSuite$0.call(Unknown Source)

at TempTestSuite1587009522630.run(TempTestSuite1587009522630.groovy:36)

Caused by: com.kms.katalon.core.exception.StepFailedException: java.lang.IncompatibleClassChangeError: Expected static method org.openqa.selenium.io.Zip.zip(Ljava/io/File;)Ljava/lang/String;

at com.kms.katalon.core.webui.driver.DriverFactory.openWebDriver(DriverFactory.java:237)

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:72)

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 com.saastack.automation.SignUp.doSignUp(SignUp.groovy:43)

at com.saastack.automation.SignUp.invokeMethod(SignUp.groovy)

at com.kms.katalon.core.main.CustomKeywordDelegatingMetaClass.invokeStaticMethod(CustomKeywordDelegatingMetaClass.java:50)

at Script1585910836354.run(Script1585910836354.groovy:21)

… 13 more

Caused by: java.lang.IncompatibleClassChangeError: Expected static method org.openqa.selenium.io.Zip.zip(Ljava/io/File;)Ljava/lang/String;

at org.openqa.selenium.firefox.FirefoxProfile.toJson(FirefoxProfile.java:362)

at org.openqa.selenium.firefox.FirefoxOptions.asMap(FirefoxOptions.java:364)

at com.kms.katalon.core.webui.driver.DriverFactory.createHeadlessFirefoxDriver(DriverFactory.java:670)

at com.kms.katalon.core.webui.driver.DriverFactory.startNewBrowser(DriverFactory.java:362)

at com.kms.katalon.core.webui.driver.DriverFactory.openWebDriver(DriverFactory.java:227)

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:72)

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 com.saastack.automation.SignUp.doSignUp(SignUp.groovy:43)

at com.saastack.automation.SignUp.invokeMethod(SignUp.groovy)

at com.kms.katalon.core.main.CustomKeywordDelegatingMetaClass.invokeStaticMethod(CustomKeywordDelegatingMetaClass.java:50)

at IndividualWizard.run(IndividualWizard:21)

… 13 more

)

2020-04-16 09:28:51.423 ERROR k.k.c.m.CustomKeywordDelegatingMetaClass - :x: Unable to open browser with url: ‘’