Flutter app run stuck white screen on device - flutter

Question

i've developed a an app on flutter, despite it worked 2 days ago, when i run the app on the device the application it does not start. It remains on the white screen and do not launch the app. I think that something happened when i synchronized the gradle.
My main.dart:
import 'package:my_firstapp/locator.dart';
import 'package:my_firstapp/models/user_model.dart';
import 'package:my_firstapp/screens/wrapper.dart';
import 'package:provider/provider.dart';
import 'package:my_firstapp/services/auth.dart';
import 'package:firebase_core/firebase_core.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
setupServices();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return StreamProvider<UserModel>.value(
value: AuthService().user,
child: MaterialApp(
theme: ThemeData(
primaryColor: Color(0xff5FA55A),
accentColor: Color(0xff5FA55A),
),
home: Wrapper(),
),
);
}
}
My manifest.xml:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.my_firstapp">
<uses-permission android:name="android.permission.CAMERA"/>
<application
android:allowBackup="true"
android:label="food_track"
android:icon="#drawable/launch_background">
<activity
android:name="com.example.my_firstapp.MainActivity"
android:launchMode="singleTop"
android:theme="#style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize"
android:exported="true">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="#style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="#drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name="com.aptreesoftware.barcodescan.BarcodeScannerActivity"/>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
I checked that everything is upgraded and it is. Do you have any ideas?

Answer 1

Open the terminal, cd to android folder of your flutter project and run:
$./gradlew build