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I am trying to use EventKit based around the doco & SimpleEKDemo application, however I am getting the following single error.
What does this error mean and what steps would be recommended for troubleshooting (first time I've had such a linking error & I'm a bit lost - I've parsed through my code versus teh example code and I can't see any obvious differences).
Undefined symbols:
"_OBJC_CLASS_$_EKEventStore", referenced from:
objc-class-ref-to-EKEventStore in AppointmentListController.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
Note that in the header file from the controller I'm using the event kit code I do have:
#import <EventKit/EventKit.h>
#import <EventKitUI/EventKitUI.h>
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The error Undefined symbols for architecture arm64: "_OBJC_CLASS_$_SKAdImpression" during the iOS build usually happens if XCode or CocoaPods version is lower than required. To fix it update XCode to 12.5 or higher and CocoaPods to 1.10. 0 or higher.
Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_xxx", referenced from: objc-class-ref in yyy.o. This generally means, you are calling "xxx" (it may be a framework or class) from the class "yyy". The compiler can not locate the "xxx" so this error occurs.
Check if you have added EventKit and EventKitUI frameworks to link with your target?
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