Android not building

[SOG-web]

Execution failed for task ':flutter_background_service_android:verifyReleaseResources'.

A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action Android resource linking failed ERROR:/Users/rou/.pub-cache/hosted/pub.dev/flutter_background_service_android-6.2.0/android/src/main/AndroidManifest.xml:10:9-16:15: AAPT: error: 'dollar_openBracket_foregroundServiceType_closeBracket' is incompatible with attribute foregroundServiceType (attr) flags [camera=64, connectedDevice=16, dataSync=1, health=256, location=8, mediaPlayback=2, mediaProjection=32, microphone=128, phoneCall=4, remoteMessaging=512, shortService=2048, specialUse=1073741824, systemExempted=1024].

[1encore]

same here!

package version 5.0.3

[BehroozBvk]

same here! @ekasetiawans Please check back as I have updated everything

flutter build apk --split-per-abi

e: /home/xx/.gradle/caches/transforms-3/88a80dc6b6ae1758788c64291343b46c/transformed/core-1.12.0/jars/classes.jar!/META-INF/core_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: /home/xx/.gradle/caches/modules-2/files-2.1/androidx.annotation/annotation-jvm/1.6.0/a7257339a052df0f91433cf9651231bbb802b502/annotation-jvm-1.6.0.jar!/META-INF/annotation.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: /home/xx/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.9.20/e58b4816ac517e9cc5df1db051120c63d4cde669/kotlin-stdlib-1.9.20.jar!/META-INF/kotlin-stdlib.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.6.0.
e: /home/xx/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.9.20/e58b4816ac517e9cc5df1db051120c63d4cde669/kotlin-stdlib-1.9.20.jar!/META-INF/kotlin-stdlib-jdk8.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.6.0.
e: /home/xx/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.9.20/e58b4816ac517e9cc5df1db051120c63d4cde669/kotlin-stdlib-1.9.20.jar!/META-INF/kotlin-stdlib-jdk7.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.6.0.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':flutter_background_service_android:verifyReleaseResources'.
> A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action
   > Android resource linking failed
     ERROR:/home/xx/.pub-cache/hosted/pub.dev/flutter_background_service_android-6.2.1/android/src/main/AndroidManifest.xml:10:9-16:15: AAPT: error: 'dollar_openBracket_foregroundServiceType_closeBracket' is incompatible with attribute foregroundServiceType (attr) flags [camera=64, connectedDevice=16, dataSync=1, health=256, location=8, mediaPlayback=2, mediaProjection=32, microphone=128, phoneCall=4, remoteMessaging=512, shortService=2048, specialUse=1073741824, systemExempted=1024].

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1m 8s
Running Gradle task 'assembleRelease'...                           69.6s

┌─ Flutter Fix ─────────────────────────────────────────────────────────────────────────────────────┐
│ [!] Your project requires a newer version of the Kotlin Gradle plugin.                            │
│ Find the latest version on https://kotlinlang.org/docs/releases.html#release-details, then update │
│ /home/xx/development/service_background/android/build.gradle:                                     │
│ ext.kotlin_version = '<latest-version>'                                                           │
└───────────────────────────────────────────────────────────────────────────────────────────────────┘
Gradle task assembleRelease failed with exit code 1

pubspec.yaml flutter_background_service: ^5.0.4 flutter_background_service_android: ^6.2.1

android/build.gradle ext.kotlin_version = '1.9.20' // latest version of kotlin according to doc

android/app/build.gradle manifestPlaceholders['foregroundServiceType'] = 'location'

AndroidManifest.xml

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

main.dart

import 'dart:async';
import 'dart:io';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:flutter_background_service/flutter_background_service.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:flutter_background_service_android/flutter_background_service_android.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await initializeService();
  runApp(const MyApp());
}

Future<void> initializeService() async {
  final service = FlutterBackgroundService();

  /// OPTIONAL, using custom notification channel id
  const AndroidNotificationChannel channel = AndroidNotificationChannel(
    'my_foreground', // id
    'MY FOREGROUND SERVICE', // title
    description:
        'This channel is used for important notifications.', // description
    importance: Importance.low, // importance must be at low or higher level
  );

  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();

  if (Platform.isAndroid) {
    await flutterLocalNotificationsPlugin.initialize(
      const InitializationSettings(
        android: AndroidInitializationSettings('ic_bg_service_small'),
      ),
    );
  }

  await flutterLocalNotificationsPlugin
      .resolvePlatformSpecificImplementation<
          AndroidFlutterLocalNotificationsPlugin>()
      ?.createNotificationChannel(channel);

  await service.configure(
    androidConfiguration: AndroidConfiguration(
      // this will be executed when app is in foreground or background in separated isolate
      onStart: onStart,
      autoStart: true,
      isForegroundMode: true,
      notificationChannelId: 'my_foreground',
      initialNotificationTitle: 'AWESOME SERVICE',
      initialNotificationContent: 'Initializing',
      foregroundServiceNotificationId: 888,
    ),
    iosConfiguration: IosConfiguration(),
  );
}

@pragma('vm:entry-point')
void onStart(ServiceInstance service) async {
  // Only available for flutter 3.0.0 and later
  DartPluginRegistrant.ensureInitialized();

  // For flutter prior to version 3.0.0
  // We have to register the plugin manually

  /// OPTIONAL when use custom notification
  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
      FlutterLocalNotificationsPlugin();

  if (service is AndroidServiceInstance) {
    service.on('setAsForeground').listen((event) {
      service.setAsForegroundService();
    });

    service.on('setAsBackground').listen((event) {
      service.setAsBackgroundService();
    });
  }

  service.on('stopService').listen((event) {
    service.stopSelf();
  });

  // bring to foreground
  Timer.periodic(const Duration(seconds: 1), (timer) async {
    if (service is AndroidServiceInstance) {
      if (await service.isForegroundService()) {
        /// OPTIONAL for use custom notification
        /// the notification id must be equals with AndroidConfiguration when you call configure() method.
        flutterLocalNotificationsPlugin.show(
          888,
          'COOL SERVICE',
          'Awesome ${DateTime.now()}',
          const NotificationDetails(
            android: AndroidNotificationDetails(
              'my_foreground',
              'MY FOREGROUND SERVICE',
              icon: 'ic_bg_service_small',
              ongoing: true,
            ),
          ),
        );

        // if you don't using custom notification, uncomment this
        service.setForegroundNotificationInfo(
          title: "My App Service",
          content: "Updated at ${DateTime.now()}",
        );
      }
    }

    /// you can see this log in logcat
    print('FLUTTER BACKGROUND SERVICE: ${DateTime.now()}');

    service.invoke(
      'update',
      {
        "current_date": DateTime.now().toIso8601String(),
      },
    );
  });
}

Flutter 3.16.0 • channel stable • https://github.com/flutter/flutter.git
Framework • revision db7ef5bf9f (3 days ago) • 2023-11-15 11:25:44 -0800
Engine • revision 74d16627b9
Tools • Dart 3.2.0 • DevTools 2.28.2

[BehroozBvk]

Apparently, the problem is from placing the foregroundServiceType value in the .pub-cache/hosted/pub.dev/flutter_background_service_android-6.2.1/android/src/main/AndroidManifest.xmlfile, I manually changed it to this:

<service
             android:enabled="true"
             android:exported="true"
             android:name=".BackgroundService"
             android:stopWithTask="false"
             android:foregroundServiceType="location"
             />

The problem is temporary, but the basics must be fixed. Now I have no problem in build apk

[Supertommino]

Same issue: https://github.com/ekasetiawans/flutter_background_service/issues/378

[FaizanKadodiya]

Is there any Complete Solution?

[ekasetiawans]

hi everyone, sorry for the delay. I just landing 5.0.5 to fix this issue in PR #391 Please take a minute to read the https://github.com/ekasetiawans/flutter_background_service/blob/master/packages/flutter_background_service/README.md