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javahadoop
Eitan Illuz
Eitan Illuz

Reputation: 333

Hadoop - Unsupported major.minor version 51.0

I am new to hadoop and was trying to run the WordCount tutorial. I am getting the following error: Unsupported major.minor version 51.0. I have seen some posts with the same error and I understand that the reason is that I am compiling my java with one JDK and running it with another. I already know I compile it with jdk 1.7 but how can I tell which version used to run it?

Thanks in advanced.

Upvotes: 0

Views: 1041

Answers (1)

Gavi
Gavi

Reputation: 11

It must be some incompatibility with your jre version. Are you using jre 7 to run it?

On the other hand, you it's easier to compile a lower version from the source. Try this (for e.g. jdk 1.6):

javac -target 1.6 wordcount.java

Upvotes: 1

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