Protege4FAQ

Protege 4.x FAQ

This page will be updated on a regular basis to address the most common questions asked about the 4.x series of Protege.

Please check this page and the p4-feedback mailing list archives before posting queries to the mailing list.

If you can't find the answer you are looking for, you can subscribe to the mailing list via the list information page: http://mailman.stanford.edu/mailman/listinfo/p4-feedback.

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General

How can I help?

Thank you very much! Please refer to our guide to contributing to Protege 4.x.

Protege-OWL Editor

Protege-OWL FAQ

Please note that we are maintaining a separate FAQ page on this wiki for the 4.x series of the Protege-OWL editor:

http://protegewiki.stanford.edu/index.php/Protege-OWL_4_FAQ

Protege Plug-ins

OWLViz

I keep getting a "DOT" error when opening OWLViz. What do I do?

This is the single most asked question about Protege-OWL.

Normally the error is something like:

An error related to DOT has occured. This error was probably because Owlviz could not find the DOT application. Please ensure that the path of the DOT application is set properly.

Or, more recently the slightly more helpful:

A DOT error has occurred. This is probably because OWLViz could not find the DOT application.
OWLViz requires that Graphviz (http://www.graphviz.org/) is installed and the path to the DOT application is set properly (in options).

Please see OWLViz troubleshooting