[Bug]: lStar not found issue when using onesignal_flutter: ^5.2.2 with Flutter SDK 3.24.0 due to compileSdkVersion 28

[sohyuyuan]

What happened?

I am encountering a lStar not found issue when attempting to build my Flutter application in release mode using the onesignal_flutter: ^5.2.2 package. This issue occurs after upgrading to Flutter SDK 3.24.0.

Steps to reproduce?

1. Upgrade Flutter SDK to 3.24.0.
2. Create a Flutter project.
2. Add the onesignal_flutter: ^5.2.2 package to the pubspec.yaml file.
3. Attempt to build the APK in release mode using flutter build apk --release

What did you expect to happen?

The application should build successfully without any issues.

Proposed Solution:
To resolve this issue, the onesignal_flutter should update its Android build.gradle to utilise compileSdk 31 or higher.

OneSignal Flutter SDK version

Release 5.2.2

Which platform(s) are affected?

• iOS
• Android

Relevant log output

flutter build apk --release

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':onesignal_flutter:verifyReleaseResources'.
> A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action
   > Android resource linking failed
     ERROR:/Users/sohyuyuan/Documents/TestProject/test_firebase_auth/build/onesignal_flutter/intermediates/merged_res/release/values/values.xml:2657: AAPT: error: resource android:attr/lStar not found.



flutter doctor -v

[✓] Flutter (Channel stable, 3.24.0, on macOS 14.5 23F79 darwin-arm64, locale en-MY)
    • Flutter version 3.24.0 on channel stable at /Users/sohyuyuan/fvm/versions/3.24.0
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 80c2e84975 (9 days ago), 2024-07-30 23:06:49 +0700
    • Engine revision b8800d88be
    • Dart version 3.5.0
    • DevTools version 2.37.2

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/sohyuyuan/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15C65
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2024.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)

[✓] VS Code (version 1.92.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.94.0

[✓] Connected device (3 available)            
    • macOS (desktop)                 • macos                 • darwin-arm64   • macOS 14.5 23F79 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin         • macOS 14.5 23F79 darwin-arm64
    • Chrome (web)                    • chrome                • web-javascript • Google Chrome 127.0.6533.100
 
[✓] Network resources
    • All expected network resources are available.

• No issues found!

Code of Conduct

• I agree to follow this project's Code of Conduct

[AnkitFlutterDev]

i am also facing this same issue in flutter latest version 3.24.0
i am upgrading my project which is i created around 18 month ago and change onesignal_flutter version 3.5.0 to 5.2.2,and also made some changes like
/*
OneSignal.shared.setAppId(oneSignalAppId);
OneSignal.shared
.promptUserForPushNotificationPermission()
.then((accepted) {});
*/
OneSignal.Debug.setLogLevel(OSLogLevel.verbose);
OneSignal.initialize(oneSignalAppId);
OneSignal.Notifications.requestPermission(true).then((accepted) {
debugPrint(" #####OneSignal Permission Accepted:$accepted #####");
});

android and ios both working fine in emulator/simulator and notification also working fine 
but whenever i tried to generate debug/release apk i got error same as like

* What went wrong:

Execution failed for task ':onesignal_flutter:verifyReleaseResources'.

A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action
Android resource linking failed
ERROR:/Users/ankitthummar/Desktop/fl_rc_supreme_web/build/onesignal_flutter/intermediates/merged_res/release/values/values.xml:2657: AAPT: error: resource android:attr/lStar not found.

• 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

[anmolstuteja]

I'm facing the same issue.

[anmolstuteja]

There seems to be a issue with the latest flutter version 3.24.0 after downgrading to 3.22.3 it's working.

[EDnny12]

Same

[this-sunil]

Some developer update latest version update this dependecies

[sunilshedge]

• What went wrong:
  Execution failed for task ':onesignal_flutter:verifyReleaseResources'.

A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action
Android resource linking failed
ERROR:D:\sunil\sanjeevani\build\onesignal_flutter\intermediates\merged_res\release\values\values.xml:2657: AAPT: error: resource android:attr/lStar not found.

[sunilshedge]

update compile sdk version compileSdkVersion 34

[sunilshedge]

main android folder group 'com.onesignal.flutter'
version '5.2.2'

buildscript {
repositories {
google()
mavenCentral()
}

dependencies {
    classpath 'com.android.tools.build:gradle:7.0.0'
}

}

rootProject.allprojects {
repositories {
google()
mavenCentral()
}
}

apply plugin: 'com.android.library'

android {
compileSdkVersion 34
// Condition for namespace compatibility in AGP <4.2
if (project.android.hasProperty("namespace")) {
namespace 'com.onesignal.flutter'
}

defaultConfig {
    minSdkVersion 16
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
lintOptions {
    disable 'InvalidPackage'
}

}

dependencies {
implementation 'com.onesignal:OneSignal:5.1.17'
}

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