Exception in thread "main" java.lang.NoClassDefFoundError: in selenium program [duplicate] - selenium

Question

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java.lang.NoClassDefFoundError: com/google/common/base/Function
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How to solve java.lang.NoClassDefFoundError? Selenium
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Closed 3 years ago.
I am getting an error "Exception in thread "main" java.lang.NoClassDefFoundError", when running a small selenium.
Added external jar file is client-combined-3.141.59.jar
If adding some more jar files like selenium-server-standalone-3.141.59, okio-1.14.1.jar errors are increasing.
package seleniumBasic;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
public class selenium {
public static void main(String[] args) {
WebDriver driver = new FirefoxDriver();
driver.get("https://www.facebook.com/");
driver.manage().window().maximize();
}

Answer 1

Probably you did not add the library correctly to your build path. From where did you get that jar and how did you add it to your project?
Anyway, I would suggest to use gradle to add these libraries. Just add the gradle nature to your project and use following example build.gradle file:
plugins {
id 'java-library'
}
dependencies {
implementation group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.141.59'
}
repositories {
jcenter()
}