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HealthKit is referenced in third-party lib or contained in
Xamarin.iOS , what we could do is to set Linker as
Link SDk only .
Ensure that you set it properly in Release mode and apply for
All Platforms .
If it does not work , try to add"--linksdkonly" in mtouch argument, refer to https://forums.xamarin.com/discussion/151862/guideline-2-5-1-performance-software-requirements-healthkit-issue .
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