Native plugins (like Firebase, camera, location) can fail due to misconfiguration or missing platform permissions.

Common Causes:

  1. Missing Android/iOS setup (e.g., google-services.json)
  2. Required permissions not declared in AndroidManifest.xml or Info.plist
  3. Plugin initialization called before WidgetsFlutterBinding.ensureInitialized()

Fixes:

Ensure Plugin Initialization

Dart:

void main() async { WidgetsFlutterBinding.ensureInitialized(); await Firebase.initializeApp(); runApp(MyApp());
}

Check Platform Permissions

For Android:

<uses-permission android:name="android.permission.CAMERA" />

For iOS (Info.plist):

xml

<key>NSCameraUsageDescription</key><string>Need camera access</string>

Use Permission Handler Package

yaml

permission_handler: ^11.0.0

Always test plugins on physical devices or full-featured emulators with Google APIs