Re: [DL-Learner discussion] Null Pointer Exception in FastInstanceChecker.java:202 - Revision 3518: /branches/1.0.1

[Jens L. <le...@in...>]

Hello,

On 02.01.2012 07:36, An C. Tran wrote:
> Hi all,
> 
> I just checked out the source code of DLLearner 1.0.1 (Revision 3518: 
> /branches/1.0.1) but it did not work for me.
> I started by launching StartGUI.java and tested by opening a 
> configuration file. However, the following exception occurred:
> 
> Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
>      at 
> org.dllearner.reasoning.FastInstanceChecker.init(FastInstanceChecker.java:202)
>      at org.dllearner.cli.Start.initComponent(Start.java:690)
>      at org.dllearner.cli.Start.<init>(Start.java:281)
>      at org.dllearner.gui.Config.loadFile(Config.java:137)
>      at org.dllearner.gui.StartGUI.actionPerformed(StartGUI.java:298)
> 
> I tried with "examples/forte/uncle_owl_large.conf" and 
> "examples/trains/trains_owl.conf".
> I think this will happen with others as well.
> 
> I tried to remove the comment for "rc = new OWLAPIReasoner(sources);" at 
> line 199 but other exceptions happened for the reasoner class (e.g. if I 
> use OWL file, exception will happen with OWLAPIReasoner.java and so on).
> 
> Are there anyone get this revision runs successfully?

Chris Shellenbarger (in CC) created the branch for testing various
things, e.g. running several learning processes in parallel, about a
year ago. Since then, there have been many changes in the main branch
(trunk), including the incorporation of some of Chris' ideas from the
branch. So all the development is happening in the trunk at the moment.
Naming the branch "1.0.1" back then is probably confusing.

So unless you have a specific reason for using this branch which I am
not aware of, I think it is better to stick with the trunk version.

Kind regards,

Jens

-- 
Dr. Jens Lehmann
AKSW/MOLE Group, Department of Computer Science, University of Leipzig
Homepage: http://www.jens-lehmann.org
GPG Key: http://jens-lehmann.org/jens_lehmann.asc