ContributionsMost RecentMost LikesSolutionsTrying to do Web application validation using Selenium in SOAPUI tool Trying to do Web application validation using Selenium in SOAPUI tool but getting "NoSuchMethodError" error. Below code i used: Code: import org.openqa.selenium.ie.InternetExplorerDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.By; import org.openqa.selenium.* //System.setProperty("webdriver.ie.driver", "C:\\Program Files (x86)\\SmartBear\\SoapUI-5.4.0\\bin\\ext\\IEDriverServer.exe") System.setProperty("webdriver.chrome.driver", "C:\\Program Files\\SmartBear\\SoapUI-5.5.0\\bin\\ext\\chromedriver.exe") //def driver = new InternetExplorerDriver() def driver = new ChromeDriver() driver.get("https://google.co.in") Error: java.lang.NoSuchMethodError: com.google.common.collect.ImmutableMap.of(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Lcom/google/common/collect/ImmutableMap; error at line: 10 Im using SOAPUI 5.5 version and done following steps: Download selenium-server-standalone-2.41.0 jar - selenium-standalone-server+IEDriver Download chromedriver_win32_2.26 - chromedriver Download httpClient_4.3.4 - httpclint Kept all the jar file inside bin/ext folder and restarted my soapui but getting same error.