Unsupported major.minor version 51.0 while running play framework

Question

I know there is version conflict. Just want someone to tell me how to resolve it. In previous stackoverflow post no one tells the solution.

Versions: Ubuntu: 12.04.1 LTS

Answer 1

You are using different JDK versions to compile and run the application. You say that:

java: 1.6.0_24 (OpenJDK) 
javac: 1.7.0_07 (OpenJDK)

So your compiler (javac) is a newer release than the java command, which means the second can't run your compiled files. You must use only 1 version of the JDK (same for java and javac)