What is causing this Crashlytics compile warning? (Auto-Linking supplied ‘…’ framework linker option at ‘…’ is not a dylib)

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The Missing Link:

This error is almost always produced by not having the binary linked to the library (In this case it would be the Crashlytics.framework):

Link Fail

Trying to build the target MyApp (which includes headers with #import <Crashlytics/Crashlytics.h> will produce the error:

ld: warning: Auto-Linking supplied
‘../../Crashlytics.framework/Crashlytics’, framework linker option at
../../Crashlytics.framework/Crashlytics is not a dylib

Link the Framework:

Link Success
Fortunately, it should be easy to fix the problem simply by dragging the Crashlytics.framework from the Frameworks folder in the project navigator into the list of Link Binary With Libraries or by using the +.

  • Make sure you have your App selected/highlighted under Targets while doing this process.

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