'flutter_local_notifications' requires core library desugaring to be enabled for app

[hafeezrana]

when I run the app. It crashes .
where as the compatible versions are

• flutter_local_notifications: 17.0.0

• ext.kotlin_version = '1.8.0'

• compileSdkVersion 34

• minSdkVersion 26

• targetSdkVersion 34

• Flutter Version : 3.19.3

Console Output:

[khalidrinaldy]

have you fix this issue?

[hafeezrana]

have you fix this issue?

not yet. Still facing the same .

[Silfalion]

have the same issue

[Silfalion]

Check this https://pub.dev/packages/flutter_local_notifications#gradle-setup

You need to add a compile option as well as a dependency for the the desugaring core library

[khalidrinaldy]

I added on build.gradle:app like

`compileOptions {
sourceCompatibility JavaVersion.VERSION_17
targetCompatibility JavaVersion.VERSION_17

    // add this code
    coreLibraryDesugaringEnabled true
}`

`dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation platform('com.google.firebase:firebase-bom:30.4.1')
implementation 'com.google.firebase:firebase-analytics'

// add these codes
// you can upgrade the window library too
implementation 'androidx.window:window:1.0.0'
implementation 'androidx.window:window-java:1.0.0'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

}`

this solved my issue

[hafeezrana]

I added on build.gradle:app like

`compileOptions { sourceCompatibility JavaVersion.VERSION_17 targetCompatibility JavaVersion.VERSION_17

    // add this code
    coreLibraryDesugaringEnabled true
}`

`dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation platform('com.google.firebase:firebase-bom:30.4.1') implementation 'com.google.firebase:firebase-analytics'

// add these codes
// you can upgrade the window library too
implementation 'androidx.window:window:1.0.0'
implementation 'androidx.window:window-java:1.0.0'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

}`

this solved my issue

[agelospanagiotakis]

i will try these solutions as i am still not able to compile correctly for google to accept my app
anyhow the documentation should be updated for clarity

[ITApexGroup]

I added on build.gradle:app like

`compileOptions { sourceCompatibility JavaVersion.VERSION_17 targetCompatibility JavaVersion.VERSION_17

    // add this code
    coreLibraryDesugaringEnabled true
}`

`dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation platform('com.google.firebase:firebase-bom:30.4.1') implementation 'com.google.firebase:firebase-analytics'

// add these codes
// you can upgrade the window library too
implementation 'androidx.window:window:1.0.0'
implementation 'androidx.window:window-java:1.0.0'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

}`

this solved my issue

How to add coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2' and coreLibraryDesugaringEnabled true my file

[khairulanas]

I added on build.gradle:app like

`compileOptions { sourceCompatibility JavaVersion.VERSION_17 targetCompatibility JavaVersion.VERSION_17

    // add this code
    coreLibraryDesugaringEnabled true
}`

`dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation platform('com.google.firebase:firebase-bom:30.4.1') implementation 'com.google.firebase:firebase-analytics'

// add these codes
// you can upgrade the window library too
implementation 'androidx.window:window:1.0.0'
implementation 'androidx.window:window-java:1.0.0'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

}`

this solved my issue

thanks, it works:

[Levi-Lesches]

Updated docs are temporarily here, see #2477 for progress

[saranshane]

I added on build.gradle:app like

`compileOptions { sourceCompatibility JavaVersion.VERSION_17 targetCompatibility JavaVersion.VERSION_17

    // add this code
    coreLibraryDesugaringEnabled true
}`

`dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation platform('com.google.firebase:firebase-bom:30.4.1') implementation 'com.google.firebase:firebase-analytics'

// add these codes
// you can upgrade the window library too
implementation 'androidx.window:window:1.0.0'
implementation 'androidx.window:window-java:1.0.0'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

}`

this solved my issue

This One Works

[iamraghavan]

Yeah, it's Buddy's @MaikuB who can fix this officially, or the Flutter official team can fix this natively.

[FlorianKipeta]

Version 10+ on the plugin now relies on desugaring to support scheduled notifications with backwards compatibility on older versions of Android. Developers will need to update their application's Gradle file at android/app/build.gradle. Please see the link on desugaring for details but for convenience, you can expand below to see the relevant portions based on if your app has a build.gradle or build.gradle.kts file

`android {
defaultConfig {
multiDexEnabled = true
}

compileOptions {
    // Flag to enable support for the new language APIs
    isCoreLibraryDesugaringEnabled = true
    // Sets Java compatibility to Java 11
    sourceCompatibility = JavaVersion.VERSION_11
    targetCompatibility = JavaVersion.VERSION_11
}

kotlinOptions {
    jvmTarget = JavaVersion.VERSION_11.toString()
}

}

dependencies {
coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.1.4")
}`