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Description
What happened?
After following the official OneSignal Flutter SDK setup documentation for iOS integration, the iOS build fails with a 'Flutter/Flutter.h' file not found
error when adding the Notification Service Extension (NSE) target. The issue specifically occurs when using flutter_flavorizr with multiple build configurations and affects both iOS simulator and physical device builds.
Key findings:
- iOS build works perfectly BEFORE OneSignal integration
- Android builds work correctly and push notifications are received successfully
- Basic OneSignal integration (without NSE) works on both simulator and physical device
- The build failure occurs specifically when adding the NSE target to Podfile
- Light clean (
flutter clean
) allows successful builds, but full clean (including Pods and DerivedData) breaks the build - The issue appears to be related to Flutter framework headers not being accessible during NSE compilation
Steps to reproduce?
1. Create Flutter project with flavors using flutter_flavorizr:
dev_dependencies:
flutter_flavorizr: 2.4.1
2. Add OneSignal Flutter SDK to `pubspec.yaml`:
dependencies:
onesignal_flutter: 5.3.4
3. Follow official OneSignal iOS setup steps 1-6:
- Add Push Notifications capability
- Add Background Modes capability with Remote notifications
- Add App Target to App Group (`group.your.bundle.id.onesignal`)
- Add Notification Service Extension target (`OneSignalNotificationServiceExtension`)
- Add NSE Target to App Group
- Update NSE code and Podfile
4. Add NSE target to Podfile:
target 'OneSignalNotificationServiceExtension' do
use_frameworks!
pod 'OneSignalXCFramework', '>= 5.0.0', '< 6.0'
end
5. Run full clean and build:
cd ios
rm -rf Pods
rm Podfile.lock
pod install
cd ..
flutter clean
flutter pub get
flutter run --flavor dev
6. Build fails with Flutter header error
What did you expect to happen?
The iOS app should build successfully and be able to receive rich push notifications with images and confirmed delivery, similar to the working Android implementation. The integration should work seamlessly with flutter_flavorizr build configurations.
OneSignal iOS SDK version
Release 5.2.14
iOS version
18
Specific iOS version
iOS 18.5
Relevant log output
Failed to build iOS app
Could not build the precompiled application for the device.
Error (Xcode): 'Flutter/Flutter.h' file not found
/Users/jakubsmolik/Developer/gitreps/achilleus-app/ios/Runner/GeneratedPluginRegistrant.h:9:8
Error (Xcode): failed to emit precompiled header '/Users/jakubsmolik/Library/Developer/Xcode/DerivedData/Runner-azxhqyehtpfjfdebvbrgytcvngkj/Build/Intermediates.noindex/PrecompiledHeaders/Runner-Bridging-Header-swift_34SWA3BTSC5ZE-clang_PR9P9IIEUPSF.pch' for bridging header '/Users/jakubsmolik/Developer/gitreps/achilleus-app/ios/Runner/Runner-Bridging-Header.h'
Error launching application on Jakub's iPhone.
Code of Conduct
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