Avery Ching commented on GIRAPH-136:

I can verify the error message is improved, but perhaps the message could be 
improved further?  Is there any example usage you have for using this?

aching:~/git/git_svn_giraph_trunk$ ./bin/giraph 
Usage: giraph [-D<Hadoop property>] <jar containing vertex> <parameters to jar>
At a minimum one must provide a path to the jar containing the vertex to be 
aching:~/git/git_svn_giraph_trunk$ ./bin/giraph 
Can't find Giraph jar.

> Erorr message for bin/giraph could be improved
> ----------------------------------------------
>                 Key: GIRAPH-136
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-136
>             Project: Giraph
>          Issue Type: Improvement
>    Affects Versions: 0.1.0
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>             Fix For: 0.2.0
>         Attachments: GIRAPH-136.patch
> Currently when one just runs bin/giraph without the required jar, the message 
> isn't very helpful:
> {noformat}[tardis giraph-0.1]$ bin/giraph
> Can't find user jar to execute.{noformat}
> It would be better to have a more in-depth message explaining Giraph and what 
> is expected.

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