"remove the file by reference from the project and add it back again" <== I don't understand what "remove the file by reference" means. Is it a facility in Xcode ? Is there a setting somewhere in Xcode which lists files that are "attached" to or used by a project ?
Anyway, I've moved onto to more tutorials.
Many thanks.
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: