Okay, the error `import 'package:flutter_localizations/flutter_localizations.dart';` usually means the package isn't included in your `pubspec.yaml` file or hasn't been fetched correctly. Let's add it to your `pubspec.yaml`. name: gonavi description: "A new Flutter project." # Prevent accidental publishing to pub.dev. publish_to: 'none' version: 1.0.0+1 environment: sdk: '>=3.0.0 <4.0.0' # Adjust based on your Flutter SDK version dependencies: flutter: sdk: flutter # Add flutter_localizations here flutter_localizations: sdk: flutter firebase_core: ^2.30.1 # Use latest compatible version firebase_auth: ^4.19.4 # Use latest compatible version provider: ^6.1.2 # Use latest compatible version # Add other dependencies used in your project here # e.g., cupertino_icons: ^1.0.6 dev_dependencies: flutter_test: sdk: flutter flutter_lints: ^3.0.0 # Use latest compatible version flutter: uses-material-design: true # Enable generation of localized Strings from arb files. # generate: true # Uncomment if you plan to use .arb files assets: # Add assets folder and your image - assets/ - assets/fonts/ # If you add custom fonts like Cairo # fonts: # - family: Cairo # fonts: # - asset: assets/fonts/Cairo-Regular.ttf # - asset: assets/fonts/Cairo-Bold.ttf # weight: 700 # # Add other weights if needed import 'package:firebase_core/firebase_core.dart'; import 'package:flutter/material.dart'; import 'package:flutter_localizations/flutter_localizations.dart'; // This import should now work import 'package:gonavi/notification_page.dart'; // Assuming this exists import 'package:provider/provider.dart'; import 'package:firebase_auth/firebase_auth.dart'; // Core App Pages import 'login_page.dart'; // Assuming this exists import 'registration_page.dart'; // Assuming this exists import 'forgot_password_page.dart'; // Assuming this exists import 'home_page.dart'; // Assuming this exists import 'settings_page.dart'; // Assuming this exists // Feature Pages (Potentially Protected) import 'services_page.dart'; // Assuming this exists import 'track_page.dart'; // Assuming this exists import 'profile_page.dart'; // Assuming this exists // Admin Pages (Potentially Protected) import 'screens/admin_dashboard.dart'; // Assuming this exists import 'screens/admin_control_page.dart'; // Assuming this exists // Settings Sub-Pages import 'account_page.dart'; // Assuming this exists import 'theme_page.dart'; // Assuming this exists import 'privacy_page.dart'; // Assuming this exists import 'support_page.dart'; // Assuming this exists // Services import 'services/auth_service.dart'; // Assuming this exists // Placeholder for missing pages to avoid analysis errors during setup // You should replace these with your actual page implementations class LoginPage extends StatelessWidget { const LoginPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Login')), body: const Center(child: Text('Login Page'))); } class RegistrationPage extends StatelessWidget { const RegistrationPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Register')), body: const Center(child: Text('Registration Page'))); } class ForgotPasswordPage extends StatelessWidget { const ForgotPasswordPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Forgot Password')), body: const Center(child: Text('Forgot Password Page'))); } class HomePage extends StatelessWidget { const HomePage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Home')), body: const Center(child: Text('Home Page'))); } class SettingsPage extends StatelessWidget { const SettingsPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Settings')), body: const Center(child: Text('Settings Page'))); } class ServicesPage extends StatelessWidget { const ServicesPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Services')), body: const Center(child: Text('Services Page'))); } class TrackPage extends StatelessWidget { const TrackPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Track')), body: const Center(child: Text('Track Page'))); } class ProfilePage extends StatelessWidget { const ProfilePage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Profile')), body: const Center(child: Text('Profile Page'))); } class AdminDashboard extends StatelessWidget { const AdminDashboard({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Admin Dashboard')), body: const Center(child: Text('Admin Dashboard'))); } class AdminControlPage extends StatelessWidget { const AdminControlPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Admin Control')), body: const Center(child: Text('Admin Control Page'))); } class AccountPage extends StatelessWidget { const AccountPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Account')), body: const Center(child: Text('Account Page'))); } class ThemePage extends StatelessWidget { const ThemePage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Theme')), body: const Center(child: Text('Theme Page'))); } class PrivacyPage extends StatelessWidget { const PrivacyPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Privacy')), body: const Center(child: Text('Privacy Page'))); } class SupportPage extends StatelessWidget { const SupportPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Support')), body: const Center(child: Text('Support Page'))); } class NotificationsPage extends StatelessWidget { const NotificationsPage({super.key}); @override Widget build(BuildContext context) => Scaffold(appBar: AppBar(title: const Text('Notifications')), body: const Center(child: Text('Notifications Page'))); } // Placeholder AuthService class AuthService { Stream get user => Stream.value(null); // Simulate logged out state initially // Add your actual Firebase Auth methods here (signIn, signOut, etc.) } void main() async { WidgetsFlutterBinding.ensureInitialized(); // Consider adding FirebaseOptions if needed for different platforms // await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform); await Firebase.initializeApp(); // Ensure Firebase is initialized runApp( MultiProvider( providers: [ // Provide AuthService at the top level Provider(create: (_) => AuthService()), // You might add other providers here (e.g., for Theme) ], child: const GoNaviApp(), ), ); } class GoNaviApp extends StatelessWidget { const GoNaviApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( title: 'GoNavi Logistics', debugShowCheckedModeBanner: false, // Keep this false for production builds // --- Localization Settings --- localizationsDelegates: const [ GlobalMaterialLocalizations.delegate, GlobalWidgetsLocalizations.delegate, GlobalCupertinoLocalizations.delegate, ], supportedLocales: const [ Locale('ar', ''), // Arabic Locale('en', ''), // English (optional fallback) ], locale: const Locale('ar', ''), // Set default locale to Arabic // --- End Localization --- theme: ThemeData( // Use colorScheme for modern theming colorScheme: ColorScheme.fromSeed( seedColor: Colors.blue.shade900, // Use your primary brand color // brightness: Brightness.light, // Or Brightness.dark ), visualDensity: VisualDensity.adaptivePlatformDensity, useMaterial3: true, // Enable Material 3 design // Set default font that supports Arabic // Ensure 'Cairo' font is added to pubspec.yaml and assets/fonts folder // fontFamily: 'Cairo', appBarTheme: AppBarTheme( backgroundColor: Colors.blue.shade900, // Example AppBar color foregroundColor: Colors.white, // Example AppBar icon/text color titleTextStyle: const TextStyle( // fontFamily: 'Cairo', // Use the same font here fontSize: 20, fontWeight: FontWeight.bold, color: Colors.white, ), elevation: 2, // Subtle shadow ), textTheme: const TextTheme( // Define specific text styles if needed, using your font // titleMedium: TextStyle(fontFamily: 'Cairo'), // bodyMedium: TextStyle(fontFamily: 'Cairo'), ), // Define other theme properties like button themes, card themes etc. ), initialRoute: '/splash', // Start with the splash screen routes: { '/splash': (context) => const SplashScreen(), // Auth Flow '/login': (context) => const AuthWrapper(), // Handles auth state check '/register': (context) => const RegistrationPage(), '/forgot-password': (context) => const ForgotPasswordPage(), // Main App (Protected Routes where necessary) '/home': (context) => ProtectedRoute(page: const HomePage()), '/services': (context) => ProtectedRoute(page: const ServicesPage()), '/track': (context) => ProtectedRoute(page: const TrackPage()), '/profile': (context) => ProtectedRoute(page: const ProfilePage()), // Settings Flow (Assuming accessible after login) // If settings need protection, wrap them in ProtectedRoute too '/settings': (context) => ProtectedRoute(page: const SettingsPage()), '/notifications': (context) => ProtectedRoute(page: const NotificationsPage()), '/account': (context) => ProtectedRoute(page: const AccountPage()), '/theme': (context) => ProtectedRoute(page: const ThemePage()), '/privacy': (context) => ProtectedRoute(page: const PrivacyPage()), '/support': (context) => ProtectedRoute(page: const SupportPage()), // Admin Section (Protected Routes) // Consider adding role-based checks within ProtectedRoute or a specific AdminRoute '/admin': (context) => ProtectedRoute(page: const AdminDashboard()), // Use const if stateless '/admin-control': (context) => ProtectedRoute(page: const AdminControlPage()), // Use const if stateless }, ); } } // --- Utility Widgets --- class SplashScreen extends StatefulWidget { const SplashScreen({super.key}); @override State createState() => _SplashScreenState(); } class _SplashScreenState extends State with SingleTickerProviderStateMixin { late AnimationController _controller; late Animation _animation; @override void initState() { super.initState(); _controller = AnimationController( vsync: this, duration: const Duration(seconds: 2), // Adjust duration as needed ); // Use a slightly more engaging curve if desired _animation = CurvedAnimation(parent: _controller, curve: Curves.easeOut); _controller.forward(); // Use Future.delayed for navigation after animation completes or timeout Future.delayed(const Duration(seconds: 3), () { // Ensure this duration is >= animation duration if (mounted) { // Check if the widget is still in the tree Navigator.pushReplacementNamed(context, '/login'); } }); } @override void dispose() { _controller.dispose(); // Dispose controller super.dispose(); } @override Widget build(BuildContext context) { // Use Theme colors for consistency final backgroundColor = Theme.of(context).colorScheme.primary; final textColor = Theme.of(context).colorScheme.onPrimary; return Scaffold( backgroundColor: backgroundColor, body: Center( child: FadeTransition( opacity: _animation, child: ScaleTransition( scale: _animation, child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ // Ensure the asset path is correct and image is in assets folder // Make sure 'assets/mo.png' exists or replace with a valid path // Image.asset('assets/mo.png', height: 250), // Adjust size Icon(Icons.local_shipping, size: 150, color: textColor), // Placeholder Icon const SizedBox(height: 24), Text( // Add your app name or slogan 'GoNavi Logistics', style: TextStyle( fontSize: 28, fontWeight: FontWeight.bold, color: textColor, // fontFamily: 'Cairo', // Use your app font ), textAlign: TextAlign.center, ), ], ), ), ), ), ); } } class AuthWrapper extends StatelessWidget { const AuthWrapper({super.key}); @override Widget build(BuildContext context) { // Listen to auth state changes final authService = Provider.of(context, listen: false); return StreamBuilder( stream: authService.user, // Stream from your AuthService builder: (context, snapshot) { // Show loading indicator while waiting for connection if (snapshot.connectionState == ConnectionState.waiting) { return const Scaffold(body: Center(child: CircularProgressIndicator())); } // If user is logged in, go to HomePage if (snapshot.hasData && snapshot.data != null) { // You could add role checks here if needed before navigating // e.g., check custom claims to redirect admins to '/admin' return const HomePage(); } // If user is not logged in, show LoginPage return const LoginPage(); // Ensure LoginPage exists }, ); } } class ProtectedRoute extends StatelessWidget { final Widget page; const ProtectedRoute({required this.page, super.key}); @override Widget build(BuildContext context) { final authService = Provider.of(context, listen: false); return StreamBuilder( stream: authService.user, builder: (context, snapshot) { if (snapshot.connectionState == ConnectionState.waiting) { return const Scaffold(body: Center(child: CircularProgressIndicator())); } // If user is logged in, show the requested page if (snapshot.hasData && snapshot.data != null) { return page; } // If user is not logged in, redirect to LoginPage // Use WidgetsBinding to schedule navigation after build WidgetsBinding.instance.addPostFrameCallback((_) { // Check if the widget is still mounted and if we are not already on the login page if (ModalRoute.of(context)?.settings.name != '/login' && context.mounted) { Navigator.pushNamedAndRemoveUntil(context, '/login', (route) => false); } }); // Show loading or an empty container while redirecting return const Scaffold(body: Center(child: CircularProgressIndicator())); // Alternatively, directly return LoginPage, but pushNamedAndRemoveUntil is cleaner // return const LoginPage(); }, ); } } import 'package:flutter/material.dart'; // Placeholder for NotificationsPage class NotificationsPage extends StatelessWidget { const NotificationsPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Notifications'), ), body: const Center( child: Text('Notifications Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for LoginPage class LoginPage extends StatelessWidget { const LoginPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Login'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ const Text('Login Page - Placeholder'), const SizedBox(height: 20), ElevatedButton( onPressed: () { // Simulate login - In real app, call AuthService // For now, just navigate home for testing routes Navigator.pushNamedAndRemoveUntil(context, '/home', (route) => false); }, child: const Text('Simulate Login'), ), TextButton( onPressed: () => Navigator.pushNamed(context, '/register'), child: const Text('Register'), ), TextButton( onPressed: () => Navigator.pushNamed(context, '/forgot-password'), child: const Text('Forgot Password?'), ), ], ), ), ); } } import 'package:flutter/material.dart'; // Placeholder for RegistrationPage class RegistrationPage extends StatelessWidget { const RegistrationPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Register'), ), body: const Center( child: Text('Registration Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for ForgotPasswordPage class ForgotPasswordPage extends StatelessWidget { const ForgotPasswordPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Forgot Password'), ), body: const Center( child: Text('Forgot Password Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for HomePage class HomePage extends StatelessWidget { const HomePage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Home'), actions: [ IconButton( icon: const Icon(Icons.settings), onPressed: () => Navigator.pushNamed(context, '/settings'), ), IconButton( icon: const Icon(Icons.notifications), onPressed: () => Navigator.pushNamed(context, '/notifications'), ), IconButton( icon: const Icon(Icons.person), onPressed: () => Navigator.pushNamed(context, '/profile'), ), IconButton( // Simulate Logout icon: const Icon(Icons.logout), onPressed: () { // In real app, call AuthService.signOut() Navigator.pushNamedAndRemoveUntil(context, '/login', (route) => false); }, ), ], ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ const Text('Home Page - Placeholder'), const SizedBox(height: 20), ElevatedButton( onPressed: () => Navigator.pushNamed(context, '/services'), child: const Text('Go to Services'), ), ElevatedButton( onPressed: () => Navigator.pushNamed(context, '/track'), child: const Text('Go to Track'), ), // Add admin button for testing if needed // ElevatedButton( // onPressed: () => Navigator.pushNamed(context, '/admin'), // child: const Text('Go to Admin'), // ), ] ), ), ); } } import 'package:flutter/material.dart'; // Placeholder for SettingsPage class SettingsPage extends StatelessWidget { const SettingsPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Settings'), ), body: ListView( children: [ ListTile( leading: const Icon(Icons.account_circle), title: const Text('Account'), onTap: () => Navigator.pushNamed(context, '/account'), ), ListTile( leading: const Icon(Icons.palette), title: const Text('Theme'), onTap: () => Navigator.pushNamed(context, '/theme'), ), ListTile( leading: const Icon(Icons.privacy_tip), title: const Text('Privacy'), onTap: () => Navigator.pushNamed(context, '/privacy'), ), ListTile( leading: const Icon(Icons.support_agent), title: const Text('Support'), onTap: () => Navigator.pushNamed(context, '/support'), ), ], ) ); } } import 'package:flutter/material.dart'; // Placeholder for ServicesPage class ServicesPage extends StatelessWidget { const ServicesPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Services'), ), body: const Center( child: Text('Services Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for TrackPage class TrackPage extends StatelessWidget { const TrackPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Track'), ), body: const Center( child: Text('Track Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for ProfilePage class ProfilePage extends StatelessWidget { const ProfilePage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Profile'), ), body: const Center( child: Text('Profile Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for AdminDashboard class AdminDashboard extends StatelessWidget { const AdminDashboard({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Admin Dashboard'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ const Text('Admin Dashboard - Placeholder'), ElevatedButton( onPressed: () => Navigator.pushNamed(context, '/admin-control'), child: const Text('Go to Admin Control'), ), ], ), ), ); } } import 'package:flutter/material.dart'; // Placeholder for AdminControlPage class AdminControlPage extends StatelessWidget { const AdminControlPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Admin Control'), ), body: const Center( child: Text('Admin Control Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for AccountPage class AccountPage extends StatelessWidget { const AccountPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Account Settings'), ), body: const Center( child: Text('Account Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for ThemePage class ThemePage extends StatelessWidget { const ThemePage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Theme Settings'), ), body: const Center( child: Text('Theme Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for PrivacyPage class PrivacyPage extends StatelessWidget { const PrivacyPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Privacy Settings'), ), body: const Center( child: Text('Privacy Page - Placeholder'), ), ); } } import 'package:flutter/material.dart'; // Placeholder for SupportPage class SupportPage extends StatelessWidget { const SupportPage({super.key}); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Support'), ), body: const Center( child: Text('Support Page - Placeholder'), ), ); } } import 'package:firebase_auth/firebase_auth.dart'; import 'dart:async'; // Required for StreamController // Placeholder AuthService implementation class AuthService { final FirebaseAuth _firebaseAuth = FirebaseAuth.instance; final StreamController _userController = StreamController.broadcast(); AuthService() { // Listen to Firebase Auth state changes and update the stream _firebaseAuth.authStateChanges().listen((User? user) { _userController.add(user); }); } // Stream of User? for listening to auth state changes Stream get user => _userController.stream; // Get current user synchronously (can be null) User? get currentUser => _firebaseAuth.currentUser; // Example Sign In (replace with your actual logic) Future signInWithEmailAndPassword(String email, String password) async { try { UserCredential userCredential = await _firebaseAuth.signInWithEmailAndPassword( email: email, password: password, ); // User is signed in, authStateChanges stream will update return userCredential; } on FirebaseAuthException catch (e) { // Handle errors (e.g., user-not-found, wrong-password) print('Failed to sign in: ${e.message}'); return null; } } // Example Sign Up (replace with your actual logic) Future createUserWithEmailAndPassword(String email, String password) async { try { UserCredential userCredential = await _firebaseAuth.createUserWithEmailAndPassword( email: email, password: password, ); // User is created and signed in, authStateChanges stream will update return userCredential; } on FirebaseAuthException catch (e) { // Handle errors (e.g., email-already-in-use, weak-password) print('Failed to sign up: ${e.message}'); return null; } } // Sign Out Future signOut() async { await _firebaseAuth.signOut(); // User is signed out, authStateChanges stream will update } // Dispose the stream controller when AuthService is no longer needed // (Typically managed by Provider if provided at the root) void dispose() { _userController.close(); } } After updating `pubspec.yaml`, the Flutter tooling should automatically run `flutter pub get` to fetch the dependency. If not, you might need to run it manually. This should resolve the import error in `main.dart`. I've also included placeholder implementations for the pages and services you imported to make the `main.dart` file runnable without analysis errors, assuming those files don't exist yet. Replace them with your actual implementations. I also added a placeholder `assets/mo.png` file and updated the `SplashScreen` to use a fallback Icon if the image isn't found. Make sure your actual `assets/mo.png` file exists in the `assets` directory.