Nick
Nick

Reputation: 85

Errors when running executable jar file

I get the error below when trying to run an executable jar file. The file only contains a main with one line "System.out.println("Woo!");" and runs fine in eclipse.

I'm not sure how to read these error messages.

UnsupportedClassVersionError exception trace

(too new to post images correctly)

Upvotes: 0

Views: 608

Answers (2)

Subhrajyoti Majumder
Subhrajyoti Majumder

Reputation: 41240

Your compiled class is in jre 1.5 and your system default jre is different(might be 1.6).

compile your code in same version of jre.

Upvotes: 1

Suraj Chandran
Suraj Chandran

Reputation: 24801

The error means that you have compiled the code with a higher version of java and trying to run it on a older version of jvm.

Since it says major.minor version 51.0 it means that your compiler is java6. So you should run your program on java6 or higher.

Upvotes: 3

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