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[protege-discussion] Problem with including rdf-based projects

Timothy Redmond tredmond at stanford.edu
Wed Jan 4 07:38:07 PST 2012


On 01/03/2012 07:01 AM, Can Kahya wrote:
> Hello,
> is there any news on this? It would be really great, if the rdf-based 
> project inclusion would work..
> Or is it a known problem without a quick fix?

Unfortunately my guess is that this is not likely to get fixed.  The 
Protege rdf-backend is a poor rdf editor and, while we still use it a 
bit, we have not been updating it too much. There are plans to make a 
proper RDF editor for Protege but we have not started this work yet.

-Timothy


> Thank you,
> Can
>
> ------------------------------------------------------------------------
> From: can_ky at hotmail.com
> To: protege-discussion at lists.stanford.edu
> Date: Thu, 15 Dec 2011 18:57:19 +0100
> Subject: Re: [protege-discussion] Problem with including rdf-based 
> projects
>
> oops, didnt mean to send the mail already - sorry for the spam!
>
> well, to continue:
> I found the same problem in the archive:
>
> http://thread.gmane.org/gmane.comp.misc.ontology.protege.owl/1312/focus=1316
>
> sadly, the link (given by Ray) in this archived message doesnt work:(
> http://protege.stanford.edu/mail_archive/msg00957.html)
>
> I tried to rename the classes in ProjectB to 
> "ProjectB_<oldClassName>". This actually worked somehow - I now was 
> able to include ProjectB in Project A without an Error. Everything was 
> just fine. However after I saved and restarted ProjecA, the same 
> error-message showed up and the classes of ProjectB were no longer 
> shown...
> Also I would much rather keep the names of ProjectB untouched - is 
> there any way to solve this?
>
> greetings,
> Can
>
> ------------------------------------------------------------------------
> From: can_ky at hotmail.com
> To: protege-discussion at lists.stanford.edu
> Date: Thu, 15 Dec 2011 18:49:50 +0100
> Subject: Re: [protege-discussion] Problem with including rdf-based 
> projects
>
> after some research I found out, that this problem is pretty old...
>
>
> ------------------------------------------------------------------------
> From: can_ky at hotmail.com
> To: protege-discussion at lists.stanford.edu
> Date: Thu, 15 Dec 2011 16:48:34 +0100
> Subject: [protege-discussion] Problem with including rdf-based projects
>
> Hi,
> I tried to include ProjectB into ProjectA. Both had an RDF/S Database.
> The error I get is displayed in a java-Pop-Up:
>
> "Errors found performing operation.
>
> 1. java.lang.ClassNotFoundException: org.apache.xerces.parsers.SAXParser
>
> 2. Fatal error. Execution stopped.
>
> See console and log for more details."
>
> The console/log shows nothing...
>
> PorjectA and ProjectB are both completely new Projects with only one 
> empty test-class in each of them..
>
> If I try to include a project using pins/pons, everything is working 
> just fine...
>
>
> The xerces.jar is inside the rdf_backend plugin-folder, as it should 
> be (and it also contains the SAXParser.class)...
> I get the same problem on any rdf/s-based project inclusion (only the 
> project to be included appears to be bad, if it is rdf/s-based)
> What is wrong here?
>
> I would greatly appreciate help on this:)
> greetings,
> Can
>
>
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