Error com eng mr WordCountDriver Unsupported major minor version 52 0

Question

When I run MapReduce Program on CHD4 and when I submit a Job to Server : I got the above error. Can anyone suggest how can I solve it?

Answer 1

Hi,

You are getting the following error because you are using the different libraries while creating the jar and while running the jar.

For example, you are using the JRE-1.6 libraries to create jar and use JRE-1.8 to run the jar without setting the compatibility inside the jar.

You can open the project in the Eclipse and change the libraries to compatible version with your execution environment.

Hope this helps.

Answer 2

The reason why you get this error is because of the different version of your JDK. We are using JDK 1.8 in our image and you should most probably be using a higher version of JDK on your local system.