java.lang.UnsupportedClassVersionError: org/openqa/gr id/selenium/GridLauncher (Unsupported major.minor version 50.0)

user_1346801 0
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I got this selenium server jar file in my Selenium folder. When I'm trying to execute this with java - jar selenium-server-standalone-2.0b3.jar command I'm getting this version difference error. Can anyone please show me where I'm making a mistake?

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openqa/gr
id/selenium/GridLauncher (Unsupported major.minor version 50.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
selenium-server selenium java
7 Answers

In my case when I did 'java -version' I got this:

Picked up _JAVA_OPTIONS: -Duser.home=C:\Users\xxxx
java version "1.7.0_151"
Java(TM) SE Runtime Environment (build 1.7.0_151-b33)
Java HotSpot(TM) Client VM (build 24.151-b33, mixed mode)

and my 'JAVA_HOME' was different as mentioned below:

C:\Program Files\Java\jdk1.8.0_91

So I have just added 'jdk1.8.0_91' in the path under my Environment Variables like this:

BEFORE:

C:\Program Files (x86)\Java\jre7\bin;

AFTER:

C:\Program Files\Java\jdk1.8.0_91\jre\bin; C:\Program Files (x86)\Java\jre7\bin;

And after that I was able to run 'webdriver-manager' successfully. I hope this will helpful for others.

user_38434050

right click on your project folder -> build path -> configure build path -> check if your selenium version matches jre ( for selenium 52 jre 8 version is required) if it not matches then click on jre -> edit -> alternate jre -> add -> give desired path -> ok -> finish

this works for me.

user_148825710
user_112596440
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