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Error: The output jar is empty. Did you specify the proper '-keep' options? [message #508284]

Mon, 18 January 2010 04:58

Eclipse User

Hi,

I'm using eclipse 3.5.1 M20090917-0800 with the current MTJ on Linux (WTK 2.5.2)

When I compile my J2ME library I get this error:

Error: The output jar is empty. Did you specify the proper '-keep' options?

Note that this J2ME library svn project has no MIDlet itself, it is used as an input
project for several MIDLet projects.

What can I try to solve the issue?
In former eclipseme or MTJ releases I can't remember to have this error seen.

Thanks
Marcel

Re: Error: The output jar is empty. Did you specify the proper '-keep' options? [message #511069 is a reply to message #508284]

Fri, 29 January 2010 12:02

Eclipse User

Hi Marcel,

Maybe the classes of your library are not selected on the build properties.

--
Diego

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