I have updated my Xcode to 15.0 and now its start giving me this error.
ABSL_CONST_INIT extern "C" const int64_t kFIRFirestoreCacheSizeUnlimited = Settings::CacheSizeUnlimited; // An attribute list cannot appear here I have gone through XCode 15.0 Release - firebase-ios-sdk bug: An attribute list cannot appear here issue on github but it does't provide support for swiftPackage manger.
3 Answers
update Firebase to v10 or change the line to
extern "C" const int64_t kFIRFirestoreCacheSizeUnlimited = Settings::CacheSizeUnlimited; 4I encountered the same issue while integrating the Firebase in my iOS application project. What What I did to overcome the issue is that i updated the Firebase version to 10.`enteplatform :ios, '13.0'
target 'Flash Chat iOS13' do use_frameworks!
Pods for Flash Chat iOS13
pod 'CLTypingLabel' , '~> 0.4.0' pod 'FirebaseAuth' pod 'FirebaseFirestore' , '~> 10.0'
end r code here`
You can update your package by going to project -> package dependencies and then selecting the package and update it to version 10 for Firebase 
