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JET FAQ Why do I have an 'Error: Unknown function name' with my custom XPath Function ?
I created a custom XPath function, but when I launch my jet transformation, I get an "Error: Unknow function name".
You have to run the jet transformation in a runtime workspace.
If you have defined the function in your jet transformation project, a bug is open about jet loading : https://bugs.eclipse.org/bugs/show_bug.cgi?id=195397.
If you have defined the function in another plug-in project from the workspace, Jet is not able to load the project while you launch the transformation. Using the transformation in a runtime workspace avoid this problem. You can also package your project and to install it to the workbench.
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