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From Sean Owen <>
Subject Re: Running mahout taste examples?
Date Wed, 26 Sep 2012 13:29:18 GMT
This isn't really enough information... it sounds like you aren't
actually including the right classes in the classpath of whatever you
are running. -Djava.library.path has nothing do with it; that's for
loading native libraries. You may want to review how you run any Java
program and set its classpath. This is nothing to do with Mahout per

On Wed, Sep 26, 2012 at 2:25 PM, Tintarev, N <> wrote:
> Hi,
> I am having a go with Mahout taste examples, but getting stuck with trivial things.
> I hope you don't mind giving me a pointer or two?
> I'm running 64bit OSx and setting it all up in Eclipse.
> I've set up M2e and checked out the code from SCM using maven.
> No problems, project looks fine – a whole bunch of files and directories, including
the RecommenderEvalutatorRunners for each dataset.
> Downloaded the Jester1 data set and converted it to .csv
> Running the evaluator directly somehow  doesn't work – it's like it doesn't have a
main class (NoClassDefFoundError).
> Setting main class with the full path or -Djava.library.path=
didn't bear any fruit either.
> The quick start which is based on command line suggests maven needs to build a few things.
> Is this possibly something I need to do in Eclipse? What did I forget to do? :)
> Best regards,
> /Nava
> The University of Aberdeen is a charity registered in Scotland, No SC013683.

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