Android Build Error: "lStar not found..."

Question

I have error like this after trying to build my apps in Emulator

/Users/joel/.gradle/caches/transforms-3/06231cc1265260b25a06bafce7a4176f/transformed/core-1.7.0-alpha02/res/values/values.xml:105:5-114:25: AAPT: error: resource android:attr/lStar not found.

I don't know what causes this error. After digging some answer which has similarly error (but in flutter) Problem. But still not solved my issue.

I have this dependency in my project

buildscript {
    repositories {
        google()
        maven { url 'https://plugins.gradle.org/m2/' }
    }

    dependencies {
        classpath 'com.google.gms:google-services:4.3.3'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.3.0'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'com.google.firebase.crashlytics'

repositories {
    maven { url 'https://maven.fabric.io/public' }
    maven { url 'https://maven.google.com' }
    maven { url  "https://teads.jfrog.io/artifactory/SDKAndroid-maven-prod"}
    mavenCentral()

}

android {
    compileSdkVersion 29
    buildToolsVersion '28.0.3'
    defaultConfig {
        applicationId "mobile.apps.my"
        minSdkVersion 17
        targetSdkVersion 29
        multiDexEnabled true
        versionCode 152
        versionName "8.1.7"
        vectorDrawables.useSupportLibrary = true // This line hereP
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    dataBinding {
        enabled = true
    }

    buildTypes {
        debug {
            firebaseCrashlytics {
                mappingFileUploadEnabled false
            }
        }

        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    lintOptions {
        checkReleaseBuilds false
        abortOnError false
    }
}

dependencies {

    implementation fileTree(include: ['*.jar'], dir: 'libs')
    androidTestImplementation('androidx.test.espresso:espresso-core:3.2.0-beta01', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    //noinspection GradleCompatible
    implementation 'androidx.appcompat:appcompat:1.4.0-alpha03'
    implementation "androidx.appcompat:appcompat-resources:1.4.0-alpha03"

    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
    implementation 'androidx.preference:preference:1.1.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.recyclerview:recyclerview:1.2.1'
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'androidx.percentlayout:percentlayout:1.0.0'

    implementation 'com.google.android.gms:play-services-analytics:17.0.0'
    implementation 'it.sephiroth.android.library.imagezoom:imagezoom:2.3.0'
    testImplementation 'org.json:json:20140107'
    implementation 'com.comscore:android-analytics:6.1.0'
    implementation 'com.android.support:customtabs:29.0.0'
    implementation 'androidx.viewpager2:viewpager2:1.0.0'
    implementation 'com.android.support:customtabs:29.0.0'

    // Kodein Dependency Injection
    implementation 'org.kodein.di:kodein-di-generic-jvm:6.2.1'
    implementation 'org.kodein.di:kodein-di-framework-android-x:6.2.1'

    // RETROFIT
    implementation 'com.squareup.retrofit2:retrofit:2.6.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.10.0'
    implementation 'com.google.code.gson:gson:2.8.5'
    implementation 'com.squareup.retrofit2:converter-scalars:2.1.0' // for test String


    // Room components
    implementation "androidx.room:room-runtime:2.2.5"
    kapt "androidx.room:room-compiler:2.2.5"
    implementation "androidx.room:room-ktx:2.2.5"
    androidTestImplementation "androidx.room:room-testing:2.2.5"

    // Lifecycle components
    implementation 'android.arch.lifecycle:extensions:1.1.1'
    implementation 'androidx.paging:paging-runtime:2.1.2'

    // UI
    implementation 'com.squareup.picasso:picasso:2.71828'
    implementation 'com.geniusforapp.fancydialog:FancyDialog:0.1.4'
    implementation 'com.github.bluzwong:swipeback:0.2.0@aar'
    implementation 'com.airbnb.android:lottie:3.6.0'

    implementation 'com.veinhorn.scrollgalleryview:library:1.2.6'
    implementation 'com.veinhorn.scrollgalleryview:picasso-loader:1.2.4'
    implementation 'com.github.rubensousa:bottomsheetbuilder:1.6.1'
    implementation "com.andkulikov:transitionseverywhere:1.8.1"


    // HTTP LOGGING
    implementation 'com.jakewharton.timber:timber:4.7.1'
    implementation 'org.jsoup:jsoup:1.13.1'
    implementation 'androidx.multidex:multidex:2.0.1'


    // ADS
    implementation 'com.android.support:support-annotations:28.0.0'
    // Required Dependency by Audience Network SDK
    implementation 'com.google.android.gms:play-services-ads:19.7.0'
    implementation 'com.google.android.gms:play-services-basement:17.6.0'
    implementation("tv.teads.sdk.android:sdk:4.7.2@aar") {
        transitive = true
    }
    implementation 'com.criteo.publisher:criteo-publisher-sdk:4.0.0'
    implementation 'com.google.android.gms:play-services-ads-identifier:17.0.0'
    implementation 'com.google.android.gms:play-services-base:17.6.0'

    implementation ('com.facebook.android:audience-network-sdk:5.5.0'){
        exclude group: 'com.google.android.gms'
    }

    implementation 'com.google.firebase:firebase-crashlytics:17.4.0'

    implementation "androidx.core:core-ktx:1.6.0"  // I have update this based on other solution
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1"
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

    // COROUTINES
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.1'
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.3'
    implementation 'com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:0.9.2'

    // Kotlin + coroutines
    implementation "androidx.work:work-runtime-ktx:2.5.0"

    implementation 'com.github.mumayank:AirLocation:1.3.1'
    androidTestImplementation 'androidx.test:rules:1.3.0-beta01'

    implementation 'com.android.installreferrer:installreferrer:2.2'

    //ANIMATION
    implementation 'com.daimajia.androidanimations:library:2.4@aar'
    implementation 'com.infideap.drawerbehavior:drawer-behavior:1.0.4'
    implementation 'com.romandanylyk:pageindicatorview:1.0.3'

    implementation 'org.ocpsoft.prettytime:prettytime:5.0.0.Final'

    //SOCIAL
    implementation 'com.google.android.gms:play-services-auth:19.0.0'

}

I have tried to upgrade version of androidx.core:core-ktx:1.6.0 then sync or invalidate cache/restart. But none of them give me good result. I am sure yesterday my project was alright with same dependency. Someone please help me, if this question unclear let me add more information. Thanks

It seems that at least one of your dependencies is already using `lStar` which is a system attribute that's new as of API level 31, but your build tools are only aware of things up to 29. Simply increasing your `compileSdkVersion` to 31 should allow that attribute to be resolved. Can you do that for this project? — Mike M., Sep 03 '21 at 10:40
This is due to the new `1.7.0-alpha02` version of the core androidx dependency which is causing the issue, simply switch to any stable version, this question has already been posted here so many times now — gtxtreme, Sep 03 '21 at 10:52
[Here](https://developer.android.com/jetpack/androidx/releases/core) is all the list of releases of this dependency , so you should switch to the stable version to be safe — gtxtreme, Sep 03 '21 at 10:54
@gtxtreme This isn't a [react-native] question. It is not advisable to downgrade anything if they can simply update their build tools. — Mike M., Sep 03 '21 at 10:54
@MikeM. yes, I was just going to add that if you upgrade to `1.7.0-alpha02` then you have to use `targetSdk 31` i.e. Android 12, and this issue is just Google preparing for stable Android 12 release and things like these, happen every year — gtxtreme, Sep 03 '21 at 10:57
@MikeM. I can not switch `compileSDKVersion` to 31 because i need to use ` implementation 'com.android.support:customtabs:29.0.0'` this dependency will be red light — Nanda Z, Sep 03 '21 at 12:21
@gtxtreme i have tried androidx.core:core-ktx:1.2.0, 1.6.0 ,and 1.7.0-alpha02 but no luck. in the Past i use 1.2.0 and no issue. could it be `implementation "androidx.work:work-runtime-ktx:2.5.0"` causing this problem. Because this is newest dependency that i added, yesterday everything is fine i even can run workmanager feature with old dependency core (1.2.0) — Nanda Z, Sep 03 '21 at 12:39
Yes, as I said, this is because google is moving everything to be ready for Android 12 and a stable release is expected soon, but the issue is with the core dependency only, did your try to clean and rebuild after downgrading? — gtxtreme, Sep 03 '21 at 12:41
@gtxtreme i reverted all my dependency that same with release version apk and now it became error with same error. This is weird — Nanda Z, Sep 03 '21 at 12:56
I am sure in released apk i use androidx.core:core-ktx:1.2.0 and androidx.work:work-runtime-ktx:2.5.0 and both of them are works but now after bulding my project become error — Nanda Z, Sep 03 '21 at 12:58
This is one of the worst plagues on Android currently. Even if you manage to fix it, you can be guaranteed that it will be back. — Johann, Jan 14 '22 at 09:06
If you're getting this error in November 2022 you can may be encountering [this bug](https://github.com/facebook/react-native/issues/35210) that Facebook introduced on Nov 4th. It's a quick fix in your `build.gradle` file. — chichilatte, Nov 06 '22 at 21:51

score 14 · Answer 1 · answered Nov 27 '21 at 09:15

14

QUICK FIX

In build.gradle(:app) file change version of appcompat to 1.3.0:

implementation 'androidx.appcompat:appcompat:1.3.0'

answered Nov 27 '21 at 09:15

PRANAV SINGH

1,000
11
17

I am already on appcompat 1.3.0. Still same error occured – GeneCode Feb 20 '22 at 16:44
@GeneCode try to change your target sdk version to 30 then clean project ->rebuild project – PRANAV SINGH Feb 21 '22 at 17:33

score 13 · Accepted Answer · answered Sep 28 '21 at 17:18

13

I managed to fix this by upgrading compileSdk to 31 and kotlin gradle plugin to 1.5.10

compileSdk = 31

classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.10'

answered Sep 28 '21 at 17:18

fetchSerotonin

192
1
9

1

Changing compileSdkVersion to 31 in my build.gradle fixed it – DIRTY DAVE Dec 01 '21 at 06:43
1

It fixed it for me as well – el_chupacabra Dec 21 '21 at 13:39
1

Thank you! Week of struggling, this solved it (I had to do only the compilesdk = 31). – EmJeiEn Feb 09 '22 at 20:07
But what's the reason behind this error, how is the fix 32 sdk working? – Astha Garg Feb 16 '22 at 12:58

score 3 · Answer 3 · answered Feb 18 '22 at 06:59

3

In my case, I was using a library which recently upgraded to androidx.appcompat:appcompat:1.4.1 and since then I started getting this error.

So, till the time the author's of this library do not provide any fix I forced the appcompat version to 1.3.0

configurations.all {
        resolutionStrategy.force 'androidx.appcompat:appcompat:1.3.0'
    }

answered Feb 18 '22 at 06:59

Astha Garg

1,022
7
21

1

This seriously saved me. – briancoder Mar 28 '23 at 12:10

score 1 · Answer 4 · answered Dec 14 '21 at 08:31

1

I changed version of appcompat from 1.4.0 to androidx.appcompat:appcompat:1.1.0 in the build.gradle, and it worked for me.

answered Dec 14 '21 at 08:31

Haleh

19
1

score 0 · Answer 5 · answered Nov 22 '22 at 00:49

1.7.0-alpha02 requires targetSdk 31.

So upgrade your sdk values.

You can use this:

buildscript {
    ext {
        buildToolsVersion = "31.0.0"
        minSdkVersion = 21
        compileSdkVersion = 31
        targetSdkVersion = 31
        androidXCore = "1.6.0"
     }
}

Android Build Error: "lStar not found..."

5 Answers5

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