[Bug] FirebaseAuth and GoogleSignIn iOS Build failure

[UnayOzan]

[REQUIRED] Please fill in the following fields:

• Unity editor version: 2021.3.17f1
• Firebase Unity SDK version: 10.4.0
• Source you installed the SDK: .unitypackage
• Problematic Firebase Component: Auth
• Other Firebase Components in use: None
• Additional SDKs you are using: _____ (Facebook, AdMob, etc.)
• Platform you are using the Unity editor on: Mac
• Platform you are targeting: iOS, Android works fine.
• GoogleSignInPackage: https://github.com/googlesamples/google-signin-unity

[REQUIRED] Please describe the issue here:

Importing only FirebaseAuth and GoogleSignIn package to empty Unity.
iOS build crashes with the following error:
`iOS framework addition failed due to a CocoaPods installation failure. This will will likely result in an non-functional Xcode project.

After the failure, "pod repo update" was executed and succeeded. "pod install" was then attempted again, and still failed. This may be due to a broken CocoaPods installation. See: https://guides.cocoapods.org/using/troubleshooting.html for potential solutions.

pod install output:

Analyzing dependencies
[!] CocoaPods could not find compatible versions for pod "GTMSessionFetcher/Core":
In Podfile:
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)

GoogleSignIn (~> 5.0.2) was resolved to 5.0.2, which depends on
  GTMSessionFetcher/Core (~> 1.1)

pod repo update output:

Updating spec repo cocoapods
$ /usr/bin/git -C /Users/macbook/.cocoapods/repos/cocoapods fetch origin --progress
$ /usr/bin/git -C /Users/macbook/.cocoapods/repos/cocoapods rev-parse --abbrev-ref HEAD
master
$ /usr/bin/git -C /Users/macbook/.cocoapods/repos/cocoapods reset --hard origin/master
HEAD is now at 9c93a1febc8e [Add] 1Flow 2023.02.03
Updating spec repo trunk

remote: Enumerating objects: 40, done.
remote: Counting objects: 2% (1/40)
remote: Counting objects: 5% (2/40)
remote: Counting objects: 7% (3/40)
remote: Counting objects: 10% (4/40)
remote: Counting objects: 12% (5/40)
remote: Counting objects: 15% (6/40)
remote: Counting objects: 17% (7/40)
remote: Counting objects: 20% (8/40)
remote: Counting objects: 22% (9/40)
remote: Counting objects: 25% (10/40)
remote: Counting objects: 27% (11/40)
remote: Counting objects: 30% (12/40)
remote: Counting objects: 32% (13/40)
remote: Counting objects: 35% (14/40)
remote: Counting objects: 37% (15/40)
remote: Counting objects: 40% (16/40)
remote: Counting objects: 42% (17/40)
remote: Counting objects: 45% (18/40)
remote: Counting objects: 47% (19/40)
remote: Counting objects: 50% (20/40)
remote: Counting objects: 52% (21/40)
remote: Counting objects: 55% (22/40)
remote: Counting objects: 57% (23/40)
remote: Counting objects: 60% (24/40)
remote: Counting objects: 62% (25/40)
remote: Counting objects: 65% (26/40)
remote: Counting objects: 67% (27/40)
remote: Counting objects: 70% (28/40)
remote: Counting objects: 72% (29/40)
remote: Counting objects: 75% (30/40)
remote: Counting objects: 77% (31/40)
remote: Counting objects: 80% (32/40)
remote: Counting objects: 82% (33/40)
remote: Counting objects: 85% (34/40)
remote: Counting objects: 87% (35/40)
remote: Counting objects: 90% (36/40)
remote: Counting objects: 92% (37/40)
remote: Counting objects: 95% (38/40)
remote: Counting objects: 97% (39/40)
remote: Counting objects: 100% (40/40)
remote: Counting objects: 100% (40/40), done.
remote: Compressing objects: 3% (1/26)
remote: Compressing objects: 7% (2/26)
remote: Compressing objects: 11% (3/26)
remote: Compressing objects: 15% (4/26)
remote: Compressing objects: 19% (5/26)
remote: Compressing objects: 23% (6/26)
remote: Compressing objects: 26% (7/26)
remote: Compressing objects: 30% (8/26)
remote: Compressing objects: 34% (9/26)
remote: Compressing objects: 38% (10/26)
remote: Compressing objects: 42% (11/26)
remote: Compressing objects: 46% (12/26)
remote: Compressing objects: 50% (13/26)
remote: Compressing objects: 53% (14/26)
remote: Compressing objects: 57% (15/26)
remote: Compressing objects: 61% (16/26)
remote: Compressing objects: 65% (17/26)
remote: Compressing objects: 69% (18/26)
remote: Compressing objects: 73% (19/26)
remote: Compressing objects: 76% (20/26)
remote: Compressing objects: 80% (21/26)
remote: Compressing objects: 84% (22/26)
remote: Compressing objects: 88% (23/26)
remote: Compressing objects: 92% (24/26)
remote: Compressing objects: 96% (25/26)
remote: Compressing objects: 100% (26/26)
remote: Compressing objects: 100% (26/26), done.
remote: Total 27 (delta 18), reused 0 (delta 0), pack-reused 0
From https://github.com/CocoaPods/Specs
fa41f1c69c16..9c93a1febc8e master -> origin/master

UnityEngine.Debug:LogError (object)
Google.Logger:Log (string,Google.LogLevel) (at /Users/drsanta/dev/tmp/unity-jar-resolver/source/VersionHandlerImpl/src/Logger.cs:136)
Google.IOSResolver:Log (string,bool,Google.LogLevel) (at /Users/drsanta/dev/tmp/unity-jar-resolver/source/IOSResolver/src/IOSResolver.cs:1242)
Google.IOSResolver:OnPostProcessInstallPods (UnityEditor.BuildTarget,string) (at /Users/drsanta/dev/tmp/unity-jar-resolver/source/IOSResolver/src/IOSResolver.cs:2794)
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun () (at /Users/bokken/build/output/unity/unity/Editor/Mono/BuildPlayerWindow.cs:180)`

[paulinon]

Hi @UnayOzan,

Thanks for reporting this issue. Is there a Podfile generated after attempting to build the project? If so, could you share it with me?

Could you also provide the complete steps you performed before facing the issue? You may provide a minimal, reproducible example of your implementation as this could be used as a baseline for troubleshooting.

[UnayOzan]

Hi @paulinon ,

I have used Authentication in an other project normally and got this error and than I just opened up a fresh project, imported both packages and tried to build without an implementation.

I can also create and send an empty project.

Here is the podfile:
Podfile.zip

[UnayOzan]

Fixed this error with changing the version in "GoogleSignIn.podspec.json" file.

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)

GoogleSignIn (~> **5.0.2**) was resolved to **5.0.2**, which depends on
  GTMSessionFetcher/Core (~> **1.1**)

I found the file in {user}.cocoapods/repos/cocoapods/Specs and then just search for "GoogleSignIn.podspec.json".
Find the folder with the same version with the error, in my case 5.0.2.
And then change its dependencies with the version 7.0.0 or something that works with the other packages.
In my project the solution was this;

 "dependencies": {
    "AppAuth": [
      "~> 1.5"
    ],
    "GTMAppAuth": [
      ">= 1.3",
      "< 3.0"
    ],
    "GTMSessionFetcher/Core": [
      ">= 1.1",
      "< 4.0"
    ]

After that I exited Xcode, deintagrated pods, cleaned cache and installed it again.
Everything works fine now.

[paulinon]

Glad to hear that you resolved the issue, @UnayOzan. That said, I'll be closing this ticket. Let me know if an issue arises.