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

Question

Compiling my main target (not a test target like here) yields this error:

ld: warning: Auto-Linking supplied 
   \'~/Documents/my_app/MyApp/Crashlytics.frame         


        

Answer 1

For future reference, this can also happen if you link your test files to your app target.

For example: https://github.com/realm/realm-cocoa/issues/1661