I follow carefully the step by step at here: https://github.com/react-native-community/react-native-google-signin/blob/master/ios-guide.md but it's still error. I try many way but not working, don't know why, please help!!!!

Image here
same issue here
same here
If you did like me and followed carefully the manual instructions but without using react-native-link, what solved it for me was adding $(SRCROOT)/../node_modules/react-native-google-signin/ios/RNGoogleSignin to the Header Search Paths
does #import <RNGoogleSignin/RNGoogleSignin.h> work?
this seemed to work #import "RNGoogleSignin.h"
we have updated the ios guide with https://github.com/react-native-community/react-native-google-signin/releases/tag/v1.0.0-rc8 so this should no longer be an issue.
Most helpful comment
If you did like me and followed carefully the manual instructions but without using
react-native-link, what solved it for me was adding$(SRCROOT)/../node_modules/react-native-google-signin/ios/RNGoogleSigninto theHeader Search Paths