App Store Connect Rejection (90208) with flutter_gemma iOS Frameworks — Invalid Bundle / Minimum OS Version Mismatch

[naitik-le]

Title: App Store Connect Rejection (90208) with flutter_gemma iOS Frameworks

Hi team,

I’m facing App Store Connect rejection issues while using flutter_gemma on iOS.

Rejection Errors

90208: Invalid Bundle. The bundle Runner.app/Frameworks/LiteRtMetalAccelerator.framework does not support the minimum OS Version specified in the Info.plist.

90208: Invalid Bundle. The bundle Runner.app/Frameworks/StreamProxy.framework does not support the minimum OS Version specified in the Info.plist.

90208: Invalid Bundle. The bundle Runner.app/Frameworks/GemmaModelConstraintProvider.framework does not support the minimum OS Version specified in the Info.plist.

---

Environment

flutter_gemma

flutter_gemma: 0.15.3

Flutter

flutter --version

Output:

Flutter 3.41.0
Dart 3.10.x

Xcode

xcodebuild -version

Output:

Xcode 26.3
Build version 17C529

---

iOS Configuration

Podfile

# Uncomment this line to define a global platform for your project
platform :ios, '16.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
  use_frameworks! :linkage => :static
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
  target 'RunnerTests' do
    inherit! :search_paths
  end
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '16.0'

      # REQUIRED FOR APPLE SILICON + TFLITE
      config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
      
      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
        '$(inherited)',
        'PERMISSION_MICROPHONE=1',                # Microphone
        'PERMISSION_SPEECH_RECOGNIZER=1',         # Speech recognition
        'PERMISSION_BLUETOOTH=1',                 # Bluetooth
        'PERMISSION_PHOTOS=1',                    # Photos
        'PERMISSION_CAMERA=1',                    # Camera
        'PERMISSION_LOCATION=1',                  # Location
      ]

      # IMPORTANT FOR GEMMA / LLAMA / METAL
      config.build_settings['ENABLE_BITCODE'] = 'NO'

      # Reduce random threading issues
      config.build_settings['DEAD_CODE_STRIPPING'] = 'YES'

      # GENERATE DSYM
      config.build_settings['DEBUG_INFORMATION_FORMAT'] = 'dwarf-with-dsym'

      # GENERATE DEBUG SYMBOLS
      config.build_settings['GENERATE_DEBUG_SYMBOLS'] = 'YES'

      # BETTER DISTRIBUTION SUPPORT
      config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES'
    end
  end
end

---

What I Already Tried

• Set iOS deployment target to 16.0 everywhere
• Clean build
• flutter clean
• Remove Pods
• Remove Podfile.lock
• Run pod install --repo-update
• Rebuild IPA
• Archive again from Xcode
• Verified Runner deployment target
• Verified framework deployment targets
• Disabled bitcode
• Reinstalled CocoaPods

---

Framework Inspection

I extracted the IPA and inspected framework deployment targets using:

find . -name "*.framework" -exec sh -c '
BIN=$(basename "{}" .framework)
echo "\n===== $BIN ====="
otool -l "{}/$BIN" | grep minos -A 2
' \;

Output:

===== LiteRtMetalAccelerator =====
minos 14.0
sdk 26.2

===== StreamProxy =====
minos 16.0
sdk 18.5

===== GemmaModelConstraintProvider =====
minos 16.0
sdk 26.2

---

Observation

Some bundled frameworks appear to be compiled using SDK 26.2, and App Store Connect rejects the archive during validation.

I suspect this may be related to:

• SDK/toolchain compatibility
• framework packaging
• deployment target metadata mismatch
• Xcode 26.x compatibility

---

Questions

• Is flutter_gemma officially compatible with Xcode 26.x and iOS SDK 26.x?
• Has anyone successfully submitted an App Store build using this setup?
• Is there a recommended Xcode version for iOS release builds?
• Is there any workaround for App Store validation rejection?

Any help would be appreciated. Thanks.