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Thread: Extension problem

  1. #1
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    Extension problem

    Hi,

    I am trying to add a helloworld extension but I keep getting an error on the server side:
    Extension helloworld failed to start [Main : Unsupported major.minor version 51.0]

  2. #2
    Former Administrator tcarr's Avatar
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    Did you compile your HelloWorld extension yourself? If so, check the version of Java that you used. The JVM that installs with ES5 is 1.6, so if you used 1.7 to compile then you will have problems. Change your compile settings to target Java 1.6 or 1.5 and it should work for you.

    If that's not the problem I'll need to see the entire error message, in context, including the part of the log that shows the JVM version, memory, etc.
    Teresa Carrigan
    Senior Software Developer
    Janus Research Group, Inc.
    previously
    Senior Engineer
    Electrotank, Inc.

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    Thanks for a quick reply. The problem was Java 1.7 version, rolled to 1.6 and it runs now.

  4. #4
    Former Administrator tcarr's Avatar
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    Glad that was an easy fix!
    Teresa Carrigan
    Senior Software Developer
    Janus Research Group, Inc.
    previously
    Senior Engineer
    Electrotank, Inc.

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