[java.lang.NoClassDefFoundError：com / google / common / collect / ImmutableMap错误，使用GeckoDriver Firefox通过Java中的Selenium进行]] << [

Question

我正在使用此代码，它给了我这个错误：

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/collect/ImmutableMap
        at org.openqa.selenium.firefox.FirefoxDriver.<clinit>FirefoxDriver.java:108)
        at Selenium_1.main(Selenium_1.java:13)
    Caused by: java.lang.ClassNotFoundException: com.google.common.collect.ImmutableMap
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 2 more

无法解决。我正在日食中工作，请你帮我一下。 

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
//comment the above line and uncomment below line to use Chrome
//import org.openqa.selenium.chrome.ChromeDriver;

public class Selenium_1 {
        public static void main(String[] args) {
            // declaration and instantiation of objects/variables
            System.setProperty("webdriver.firefox.marionette","C:\\Program Files\\Java\\jre1.8.0_231\\lib\\ext\\geckodriver.exe");
            //System.setProperty("webdriver.chrome.driver", "/path/to/chrome driver");
            WebDriver driver = new FirefoxDriver();
            //comment the above 2 lines and uncomment below 2 lines to use Chrome
            //System.setProperty("webdriver.chrome.driver","G:\\chromedriver.exe");
            //WebDriver driver = new ChromeDriver();

            String baseUrl = "http://demo.guru99.com/test/newtours/";
            String expectedTitle = "Welcome: Mercury Tours";
            String actualTitle = "";

            // launch Fire fox and direct it to the Base URL
            driver.get(baseUrl);

            // get the actual value of the title
            actualTitle = driver.getTitle(); 

            /*
             * compare the actual title of the page with the expected one and print
             * the result as "Passed" or "Failed"
             */
            if (actualTitle.contentEquals(expectedTitle)){
                System.out.println("Test Passed!");
            } else {
                System.out.println("Test Failed");
            }



            //close Fire fox
            driver.close();
        }
    }

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[我正在使用此代码，它给我这个错误：线程“ main”中的异常java.lang.NoClassDefFoundError：org / openqa.selenium.firefox上的com / google / common / collect / ImmutableMap。...

Answer 1

此错误消息...