[iOS] Pod install warning: EXCLUDED_ARCHS conflict with AppLovin's Facebook Adapter (FBAudienceNetwork)

[eli1stark]

Description

When using tenjin_plugin in a Flutter project that includes AppLovin mediation adapters (specifically AppLovinMediationFacebookAdapter which includes FBAudienceNetwork as a dependency), pod installation shows a warning about conflicting EXCLUDED_ARCHS build settings.

Warning Message

[!] Can't merge user_target_xcconfig for pod targets: ["FBAudienceNetwork", "tenjin_plugin"]. 
Singular build setting EXCLUDED_ARCHS[sdk=iphonesimulator*] has different values.

Environment

• tenjin_plugin: 1.2.8
• applovin_max: 4.5.2
• AppLovinMediationFacebookAdapter: latest
• CocoaPods: 1.16.2
• Mac: Apple Silicon M1
• Flutter: 3.35.2

Podfile Configuration

target 'Runner' do
  use_frameworks!
  use_modular_headers!

  # AppLovin Adapters
  pod 'AppLovinMediationFacebookAdapter'  # <- This brings in FBAudienceNetwork

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
end

Steps to Reproduce

1. Create Flutter project with AppLovin mediation
2. Add tenjin_sdk to pubspec.yaml:

dependencies:
  tenjin_plugin: 1.2.8
  applovin_max: 4.5.2

3. Add AppLovin adapters to iOS Podfile (as shown above)
4. Run cd ios && pod install
5. Warning appears during installation

I’ve also created a GitHub repo in case you have trouble reproducing the bug: https://github.com/eli1stark/tenjin_test_app.

Current Behavior

• Pod installation completes despite the warning
• App builds and runs successfully
• Warning appears every time pod install is run
• The conflict is between tenjin_plugin and FBAudienceNetwork (dependency of AppLovinMediationFacebookAdapter)

Expected Behavior

Clean pod installation without warnings when used alongside common ad mediation platforms.

Additional Context

Many Flutter games use AppLovin MAX for ad mediation along with analytics SDKs like Tenjin. This warning creates uncertainty about whether builds are properly configured, especially for different architectures.

The AppLovin Facebook adapter is widely used, so compatibility with it would benefit many developers.

Impact

While not blocking, this warning:

• Appears in CI/CD logs
• Creates confusion about build integrity
• Requires developers to research if it's safe to ignore

Please update the podspec to be compatible with FBAudienceNetwork/AppLovin adapters.