iOS build fails: Conflicting GoogleUtilities versions between Firebase and GoogleSignIn

[carlos-raposo]

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• I confirm I am able to do a fresh clone of the repository and build the project on my local computer.

Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

1. Create a Flutter project with Firebase Auth, Firebase Core, Firestore and Google Sign-In
2. Set up codemagic.yaml with iOS build configuration
3. Run a build on Codemagic for iOS
4. Build fails due to conflicting GoogleUtilities version requirements

Expected results

A successful iOS build that includes Google Sign-In functionality along with Firebase authentication.

Actual results

CocoaPods could not find compatible versions for pod "GoogleUtilities/Environment"
Required by:

• firebase_auth requires GoogleUtilities/Environment (~> 7.8)
• firebase_core requires GoogleUtilities/Environment (~> 7.12)
• google_sign_in_ios requires GoogleUtilities/Environment (~> 8.0)

There seems to be an irreconcilable conflict between different versions of GoogleUtilities required by Firebase packages (7.8, ~7.12) and Google Sign-In (8.0).

Additional information
I've tried multiple approaches:

Fixing specific versions in Podfile
Using CocoaPods 1.11.3
Setting minimum iOS deployment target to 15.0
Adding custom post_install hooks
Using different combinations of Firebase and Google Sign-In versions
None of these approaches have successfully resolved the conflict.

Build id (optional)

68310f5ef39bef929377d254

[Becca-Saka]

Hello @carlos-raposo , We currently have an ongoing thread on discord. I'll be closing this as a duplicate, please let's continue there.