I want to use Helvetica Neue Ultra Light in my application Watchkit. I followed all the instructions for adding a custom font (added to the extension pack and added to the Info.plist application for the extension and Watchkit), but NOTHING works and it will never be used.
Actually the weird thing, the other fonts ttfthat I added to DO work, it seems like it's some kind of weird problem with Helvetica.



Where is Helvetica, and why can't I add it?
Edit: To clarify the situation and prevent what, in the opinion of the people, may be obvious answers.
Watchkit (San Francisco), , iOS. (Ref: devforums.apple.com/message/1096179#1096179) Helvetica.