Edit the bridging header to include or expose any other class not mentioned in the file below that you wish to expose to the swift project provided you aren't using a binary only version of the RK framework.
Under the ResearchKit path edit ResearchKit_Private.h
You will also need to make ORKSubheadlineLabel.h, ORKDefaultFont.h, ORKLabel.h a public class in the ResearchKit build phases headers
Remember to mark this as solved.
1. Add the missing header file to ‘ResearchKit_Private.h’.
2. Move/add that file, plus any (recursive) imports to ResearchKit|Build Phases|Headers in the Public section.