While upgrading react-native from version 0.59.9 to 0.71.2, I am facing multiple build errors, no surprise that there is drastic changes happened from 0.59.9 to 0.71.2.
Error : CocoaPods could not find compatible versions for pod “GTMSessionFetcher/Core”
[!] CocoaPods could not find compatible versions for pod “GTMSessionFetcher/Core”:
In Podfile:
RNFBAuth (from ../node_modules/@react-native-firebase/auth) was resolved to 17.0.0, which depends on
Firebase/Auth (= 10.4.0) was resolved to 10.4.0, which depends on
FirebaseAuth (~> 10.4.0) was resolved to 10.4.0, which depends on
GTMSessionFetcher/Core (< 4.0, >= 2.1)
RNGoogleSignin (from `../node_modules/react-native-google-signin`) was resolved to 2.1.1, which depends on
GoogleSignIn (~> 5.0.0) was resolved to 5.0.2, which depends on
GTMSessionFetcher/Core (~> 1.1)[!] Do not use “pod install” from inside Rosetta2 (x86_64 emulation on arm64).
[!] – Emulated x86_64 is slower than native arm64
[!] – May result in mixed architectures in rubygems (eg: ffi_c.bundle files may be x86_64 with an arm64 interpreter)
[!] Run “env /usr/bin/arch -arm64 /bin/bash –login” then try again.
Solution (fix) for CocoaPods could not find compatible versions for pod “GTMSessionFetcher/Core”
add below line on top of your pod file, this should be first line of your pod file
$FirebaseSDKVersion = ‘9.6.0’
Reference: thanks to Stackoverflow post