Running OpenHAB from source, unable to add things

I have prepared the development environment in eclipse as per the guideline. But I am unable to add a new things. I have a WeMo switch in my network and it appears in PaperUI. But when I try to add it as a things, it gives me 409 error and I see the message Cannot create thing. No binding found that supports creating a thing of type wemo:insight. in the debug log. I have enabled WeMo binding from the run configuration but still it does not work and I don’t see the binding in the list of bindings. Please provide me some guideline about how I should debug it. As the source code is pretty massive with many different modules, it is very complex for a starter.