Hi, Holger,

Yes, apparently that was the issue, i.e., the file X.owl was created in Protégé 
and saved with OWL syntax. I created a new namespace, copied the new X.rdf file 
within TB to the project, and the errors went away. Does this mean you are 
using Jena by default underneath, per the reference you provided?

Thanks,
Leo

From: [email protected] [mailto:[email protected]] 
On Behalf Of Holger Knublauch
Sent: Saturday, May 17, 2014 12:18 AM
To: [email protected]
Subject: Re: [topbraid-users] opening an owl ontology in TBCME, thereby 
creating a project automatically, errors

Hi Leo,

see this question at

http://answers.semanticweb.com/questions/15004/using-jena-to-access-an-owlxml-file-made-from-protege

which reminds me strongly of the errors you describe. Perhaps the Protege files 
were saved in OWL/XML format, which is very different from RDF/XML. We strongly 
recommend using neither of those formats and use Turtle instead.

HTH
Holger

On 5/17/14, 4:16 AM, Obrst, Leo J. wrote:
I am using TBCME 4.4, and systematically, whenever I try to open an OWL 
ontology file outside of TBCME, even those without any imported ontologies, I 
choose to create a project, and TBCME does so. However, it always generates 3 
errors.

The error log doesn't show much:

ERROR [Thread-25] (ErrorHandlerFactory.java:84) - {E201} Multiple children of 
property element,
An exception stack trace is not available.
eclipse.buildId=unknown
java.version=1.7.0_55
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Command-line arguments:  -os win32 -ws win32 -arch x86_64

And it only displays that one error, not three, with a whole lot of warnings, 
basically pairs of the following:
WARN [Thread-25] (ErrorHandlerFactory.java:77) - {W102} Unqualified property 
attributes are not allowed. Property treated as a relative URI.
WARN [Thread-25] (ErrorHandlerFactory.java:77) - {W136} Relative URIs are not 
permitted in RDF: specifically <IRI>
...

The OWL or RDF files never look erroneous, and Protégé never complains (which 
is not, obviously, definitive).

Is this a known problem? It really does this for every file that I bring in in 
this way.

Thanks,
Leo

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