Manual linking IOS - ilya-uryupov/react-native-spinkit GitHub Wiki
In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
Go to node_modules ➜ react-native-spinkit and add RNSpinkit.xcodeproj
In XCode, in the project navigator, select your project. Add libRNSpinkit.a to your project's Build Phases ➜ Link Binary With Libraries
Click RNSpinkit.xcodeproj in the project navigator and go the Build Settings tab. Make sure 'All' is toggled on (instead of 'Basic'). Look for Header Search Paths and make sure it contains both $(SRCROOT)/../react-native/React and $(SRCROOT)/../../React - mark both as recursive.