I separated a part of my big .jsp file used a .faces to a new file, using "extract file" refactoring. My app works well, so do all Unable to render embedded object: File (code completions) not found., but new file looks full of warnings. all my value expressions (#{ontologyInfo.currentOntology.name}) have "JSF EL out of attribute" warning. all jsf tags have "Namespace not bound" warning, which is not providing an option (on alt+enter) to turn it off or info. All was ok in main file.