I have a strange problem.
Xcode 12.5
In one of my project I cannot use 'import EventKitUI'. When I use this it says 'Could not build Objective-C module 'EventKitUI''
However, when I create a new swift project I can add import EventKitUI without any problem. For some reason the problem exists in this particular project only. Maybe I mess up with settings but I have no idea where to look at.