java.lang.NoSuchMethodError: No static method asAttributeSet(Lt/g/a/a;)Landroid/util/AttributeSet; in class Landroid/util/Xml;

Question

Complete error

java.lang.NoSuchMethodError: No static method asAttributeSet(Lt/g/a/a;)Landroid/util/AttributeSet; in class Landroid/util/Xml; or its super classes (declaration of 'android.util.Xml' appears in /system/framework/framework.jar!classes2.dex)

I have uploaded appbundle on play store, and whenever I download the app from it in my device, app crashes with logs as below... (logs are collected from all the RedMI devices android os 9, MIUI 11 and 10)

java.lang.NoSuchMethodError: No static method asAttributeSet(Lt/g/a/a;)Landroid/util/AttributeSet; in class Landroid/util/Xml; or its super classes (declaration of 'android.util.Xml' appears in /system/framework/framework.jar!classes2.dex)
at i.b.k.h.g.inflate(Unknown Source:21)
at xxx.yyyyyy.zzzzzz.qqqqqq.cccc.view.HomeActivity.onCreateOptionsMenu(Unknown Source:12)
at android.app.Activity.onCreatePanelMenu(Activity.java:3456)
at android.support.v4.app.i.onCreatePanelMenu(Unknown Source:2)
at i.b.k.h.i.onCreatePanelMenu(Unknown Source:2)
at android.support.v7.app.h$k.onCreatePanelMenu(Unknown Source:8)
at i.b.k.h.i.onCreatePanelMenu(Unknown Source:2)
at android.support.v7.app.l.p(Unknown Source:25)
at android.support.v7.app.l$a.run(Unknown Source:2)
at android.os.Handler.handleCallback(Handler.java:794)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:6651)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)

app.gradle

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'io.fabric'

android {
    lintOptions {
        checkReleaseBuilds false
        abortOnError false
    }
    compileSdkVersion rootProject.ext.androidCompileSdkVersion
    defaultConfig {
        applicationId "xxx.yyyyyy.zzzzzz"
        minSdkVersion rootProject.ext.androidMinSdkVersion
        targetSdkVersion rootProject.ext.androidTargetSdkVersion
        versionCode 1
        versionName "1.0"
        resValue "string", "app_name", "zzzzzz"
        vectorDrawables.useSupportLibrary = true
        multiDexEnabled true
    }

    kapt {
        generateStubs = true
    }

    flavorDimensions "default"

    productFlavors {
        stage {
            applicationId "xxx.yyyyyy.zzzzzz.stage"
            versionCode 10000
            versionName "3.0.55"
            dimension "default"
        }
        dev {
            applicationId "xxx.yyyyyy.zzzzzz.dev"
            versionCode 10
            versionName "3.0.20"
            dimension "default"
        }
        prod {
            applicationId "xxx.yyyyyy.zzzzzz"
            versionCode 1000
            versionName "3.1.12"
            dimension "default"
        }
    }

    dynamicFeatures = [":apphub"]

    signingConfigs {
        release {
            storeFile file(getProjectDir().parent + "/Keystore/swipe.keystore")
        }
    }

    buildTypes {
        release {
            minifyEnabled true
            signingConfig signingConfigs.debug
            applicationVariants.all { variant ->
                renameAPK(variant)
            }
        }
    }
    compileOptions {
        sourceCompatibility = '1.8'
        targetCompatibility = '1.8'
    }

    dataBinding {
        enabled = true
    }

    dexOptions {
        javaMaxHeapSize "4g"
    }
    packagingOptions {
        pickFirst 'lib/armeabi-v7a/libRSSupport.so'
        pickFirst 'lib/arm64-v8a/libRSSupport.so'
        pickFirst 'lib/x86_64/libRSSupport.so'
        pickFirst 'lib/x86/libRSSupport.so'
        pickFirst 'lib/mips/libRSSupport.so'
        pickFirst 'lib/armeabi-v7a/librsjni.so'
        pickFirst 'lib/arm64-v8a/librsjni.so'
        pickFirst 'lib/x86_64/librsjni.so'
        pickFirst 'lib/x86/librsjni.so'
        pickFirst 'lib/mips/librsjni.so'
        pickFirst 'lib/x86_64/librsjni_androidx.so'
        pickFirst 'lib/armeabi-v7a/librsjni_androidx.so'
        pickFirst 'lib/x86/librsjni_androidx.so'
        pickFirst 'lib/arm64-v8a/librsjni_androidx.so'
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation "com.android.support:support-v4:$supportLibraryVersion"
    implementation "com.android.support.constraint:constraint-layout:$contraintLayoutVersion"

    // Android Support libs
    implementation "com.android.support:appcompat-v7:$supportLibraryVersion"
    implementation "com.android.support:design:$supportLibraryVersion"
    implementation "com.android.support.constraint:constraint-layout:$contraintLayoutVersion"
    implementation "com.android.support:cardview-v7:$supportLibraryVersion"
    implementation "com.android.support:recyclerview-v7:$supportLibraryVersion"

    // Kotlin libs
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

    // Retrofit, GSON and OkHttp
    implementation "com.squareup.retrofit2:retrofit:$retrofitLibraryVersion"
    implementation "com.google.code.gson:gson:$gsonLibraryVersion"
    implementation "com.squareup.retrofit2:converter-gson:$retrofitLibraryVersion"
    implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofitLibraryVersion"
    implementation "io.reactivex.rxjava2:rxandroid:$rxAndroidVersion"
    implementation "com.squareup.okhttp3:okhttp:$okHttpLibraryVersion"
    implementation "com.squareup.okhttp3:logging-interceptor:$okHttpLibraryVersion"

    // Architecture Libs
    implementation "android.arch.lifecycle:extensions:$archVersion"
    implementation "android.arch.persistence.room:runtime:$archVersion"
    implementation "android.arch.lifecycle:runtime:$archVersion"
    implementation "android.arch.persistence.room:rxjava2:$archVersion"
    kapt "android.arch.lifecycle:compiler:$archVersion"
    kapt "android.arch.persistence.room:compiler:$archVersion"
    implementation "android.arch.paging:runtime:$pagingVersion"
    implementation "android.arch.work:work-runtime-ktx:$workerVersion"

    // Picasso
    implementation "com.squareup.picasso:picasso:$picassoLibraryVersion"

    //GCM libs
    implementation "com.google.android.gms:play-services-location:$playserviceLibraryVersion"

    // Google places
    implementation "com.google.android.gms:play-services-places:$playserviceLibraryVersion"

    //google auth
    implementation 'com.google.android.gms:play-services-auth:16.0.1'

    // Exo player lib
    implementation 'com.google.android.exoplayer:exoplayer:2.9.1'
    implementation 'com.pierfrancescosoffritti.androidyoutubeplayer:core:8.0.1'
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.5@aar') {
        transitive = true
    }

    // library for generating QR code
    implementation 'com.google.zxing:core:3.3.0'
    implementation 'com.journeyapps:zxing-android-embedded:3.3.0@aar'
    implementation 'com.intuit.sdp:sdp-android:1.0.5'
    implementation 'com.intuit.ssp:ssp-android:1.0.5'
    implementation 'com.github.bumptech.glide:glide:4.9.0'
    implementation('com.github.bumptech.glide:okhttp3-integration:4.9.0') {
        exclude group: 'glide-parent'
    }

    // MixPanel analytics & Play Service GCM
    implementation 'com.mixpanel.android:mixpanel-android:5.4.1'
    implementation "com.google.android.gms:play-services-gcm:$playserviceLibraryVersion"
    implementation "com.google.firebase:firebase-core:$firebaseCoreVersion"
    implementation "com.google.firebase:firebase-messaging:$firebaseMessagingVersion"

    // Skeleton view lib
    implementation 'com.ethanhua:skeleton:1.1.1'
    implementation 'io.supercharge:shimmerlayout:2.1.0'

    //ProgressDialog
    implementation 'com.wang.avi:library:2.1.3'
    implementation 'com.facebook.android:facebook-login:5.0.0'
    implementation project(':banking')
    implementation project(':content')
    implementation project(':messaging')
    implementation project(':shopping')
    implementation project(':base')
    implementation project(':travel')
    implementation project(':event')
    implementation 'com.github.GoodieBag:Pinview:v1.3'
    debugImplementation 'com.amitshekhar.android:debug-db:1.0.6'
    implementation 'com.appsflyer:af-android-sdk:4.9.0'
    implementation 'com.android.installreferrer:installreferrer:1.0'
    implementation 'com.makeramen:roundedimageview:2.3.0'
    implementation "ru.tinkoff.scrollingpagerindicator:scrollingpagerindicator:1.0.6"
    implementation "com.daimajia.swipelayout:library:1.2.0@aar"
    implementation 'io.branch.sdk.android:library:3.1.0'

    //dynamic feature
    implementation 'com.google.android.play:core:1.4.1'

}
repositories {
    mavenCentral()
    google()
    maven { url 'https://maven.fabric.io/public' }
    maven { url "https://jitpack.io" }
}
configurations {
    compile.exclude group: 'androidx.annotation', module: 'annotation'
}

configurations.all {
    resolutionStrategy.force 'com.android.support:support-v4:28.0.0'
}
static def renameAPK(variant) {
    variant.outputs.all { output ->
        def formattedDate = new Date().format('dd-MM-YYYY')
        def projectName = variant.mergedFlavor.resValues.get('app_name').getValue()
        def projectVersionName = "_v" + variant.productFlavors.get(0).versionName
        def projectBuildCode = "_b" + variant.productFlavors.get(0).versionCode
        def buildDate = "_d" + formattedDate
        def flavorsName = "_" + variant.productFlavors.get(0).name
        def flavorsType = "_" + variant.variantData.variantConfiguration.buildType.name
        def fileName = projectName + projectVersionName + projectBuildCode + buildDate + flavorsName + flavorsType + ".apk"
        outputFileName = fileName
    }
}

apply plugin: 'com.google.gms.google-services'

dynamicModule build.gradle (apphub)

apply plugin: 'com.android.dynamic-feature'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'

androidExtensions {
  experimental = true
}
android {
  compileSdkVersion rootProject.ext.androidCompileSdkVersion

  defaultConfig {
    minSdkVersion rootProject.ext.androidMinSdkVersion
    targetSdkVersion rootProject.ext.androidTargetSdkVersion
    versionCode 1
    versionName "1.0"
    vectorDrawables.useSupportLibrary = true
  }
  flavorDimensions "default"
  productFlavors {
    stage {
      applicationId "xxx.yyyyyy.zzzzzz.stage"
      versionCode 10000
      versionName "2.12"
      dimension "default"
    }
    dev {
      applicationId "xxx.yyyyyy.zzzzzz.dev"
      versionCode 10
      versionName "0.16"
      dimension "default"
    }
    prod {
      applicationId "xxx.yyyyyy.zzzzzz.apphub"
      versionCode 1000
      versionName "3.1.12"
      dimension "default"
    }
  }

  dataBinding {
    enabled = true
  }

  kapt {
    generateStubs = true
  }

  compileOptions {
    sourceCompatibility 1.8
    targetCompatibility 1.8
  }
}

dependencies {
  implementation fileTree(dir: 'libs', include: ['*.jar'])
  implementation project(':app')
  implementation project(':base')
  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
  implementation "com.android.support:appcompat-v7:$supportLibraryVersion"
  implementation "com.android.support.constraint:constraint-layout:$contraintLayoutVersion"
  implementation "com.android.support:design:$supportLibraryVersion"
  implementation 'com.intuit.sdp:sdp-android:1.0.5'
  implementation 'com.intuit.ssp:ssp-android:1.0.5'
  implementation "com.squareup.picasso:picasso:$picassoLibraryVersion"
  implementation "com.google.code.gson:gson:$gsonLibraryVersion"
  implementation "android.arch.lifecycle:extensions:$archVersion"
  implementation "com.android.support:cardview-v7:$supportLibraryVersion"
  implementation "com.squareup.retrofit2:retrofit:$retrofitLibraryVersion"
  implementation "com.google.code.gson:gson:$gsonLibraryVersion"
  implementation "com.squareup.retrofit2:converter-gson:$retrofitLibraryVersion"
  implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofitLibraryVersion"
  implementation "io.reactivex.rxjava2:rxandroid:$rxAndroidVersion"
  implementation "com.squareup.okhttp3:okhttp:$okHttpLibraryVersion"
  implementation "com.squareup.okhttp3:logging-interceptor:$okHttpLibraryVersion"
  implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
  implementation 'com.google.android.exoplayer:exoplayer:2.9.1'
}

dynamic module androidManifest.xml (apphub)

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:dist="http://schemas.android.com/apk/distribution"
    package="xxx.yyyyyy.zzzzzz.apphub">

  <dist:module
      dist:onDemand="false"
      dist:instant="false"
      dist:title="@string/title_app_hub">
    <dist:fusing dist:include="true"/>
  </dist:module>

  <application>
    <activity
      android:name="xxx.yyyyyy.zzzzzz.qqqqqqqqq.aaaaaaaaa.AppHubActivity"
      android:windowSoftInputMode="stateHidden|adjustPan"
      android:screenOrientation="portrait" />
  </application>

</manifest>

method to download module runtime

private fun installDynamicModule(intent: Intent) {
        val int:Intent = intent
        var manager: SplitInstallManager = SplitInstallManagerFactory.create(this@MainActivity)
        val request: SplitInstallRequest = SplitInstallRequest.newBuilder().addModule("apphub").build()
        if (manager.installedModules.contains("apphub")) {
            startActivity(int)
            Log.e("main","main: activity start without download")
        } else{
            manager.startInstall(request)
                    .addOnSuccessListener {
                        Toast.makeText(this@MainActivity, "Download Success", Toast.LENGTH_SHORT).show()
                        Log.e("main","main: addOnSuccessListener")
                    }
                    .addOnFailureListener {
                        Toast.makeText(this@MainActivity, "Download Fail", Toast.LENGTH_SHORT).show()
                        Log.e("main","main: addOnFailureListener")
                    }
                    .addOnCompleteListener {
                        startActivity(int)
                        Toast.makeText(this@MainActivity, "Download Complete", Toast.LENGTH_SHORT).show()
                        Log.e("main","main: addOnCompleteListener")
                    }
        }

proguard of app module

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in /Users/mavya.soni/Desktop/Software/AndroidTools/sdk/android-sdk-macosx/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
# directive in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}

# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable

# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile
-keep class sun.misc.Unsafe { *; }
-dontwarn java.nio.file.*
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
-dontwarn okio.**
# OkHttp
-keepattributes Signature
-keepattributes *Annotation*
-keep class okhttp3.** { *; }
-keep interface okhttp3.** { *; }
-dontwarn okhttp3.**
# Retrofit 2.X
## https://square.github.io/retrofit/ ##

-dontwarn retrofit2.**
-keep class retrofit2.** { *; }
-keepattributes Signature
-keepattributes Exceptions

-keepclasseswithmembers class * {
    @retrofit2.http.* <methods>;
}

## Square Picasso specific rules ##
## https://square.github.io/picasso/ ##

-dontwarn com.squareup.okhttp.**

## Rxjava
-dontwarn sun.misc.**


# rxjava
-keep class rx.schedulers.Schedulers {
    public static <methods>;
}
-keep class rx.schedulers.ImmediateScheduler {
    public <methods>;
}
-keep class rx.schedulers.TestScheduler {
    public <methods>;
}
-keep class rx.schedulers.Schedulers {
    public static ** test();
}
-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
    long producerIndex;
    long consumerIndex;
}
-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef {
    long producerNode;
    long consumerNode;
}

-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
   long producerIndex;
   long consumerIndex;
}

-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef {
    rx.internal.util.atomic.LinkedQueueNode producerNode;
}

-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueConsumerNodeRef {
    rx.internal.util.atomic.LinkedQueueNode consumerNode;
}

-dontnote rx.internal.util.PlatformDependent

## Android architecture components: Lifecycle
# LifecycleObserver's empty constructor is considered to be unused by proguard
-keepclassmembers class * implements android.arch.lifecycle.LifecycleObserver {
    <init>(...);
}
# ViewModel's empty constructor is considered to be unused by proguard
-keepclassmembers class * extends android.arch.lifecycle.ViewModel {
    <init>(...);
}
# keep Lifecycle State and Event enums values
-keepclassmembers class android.arch.lifecycle.Lifecycle$State { *; }
-keepclassmembers class android.arch.lifecycle.Lifecycle$Event { *; }
# keep methods annotated with @OnLifecycleEvent even if they seem to be unused
# (Mostly for LiveData.LifecycleBoundObserver.onStateChange(), but who knows)
-keepclassmembers class * {
    @android.arch.lifecycle.OnLifecycleEvent *;
}

-keepclassmembers class * implements android.arch.lifecycle.LifecycleObserver {
    <init>(...);
}

-keep class * implements android.arch.lifecycle.LifecycleObserver {
    <init>(...);
}
-keepclassmembers class android.arch.** { *; }
-keep class android.arch.** { *; }
-dontwarn android.arch.**

-keepclasseswithmembernames class * {
   native <methods>;
}
-ignorewarnings

-keep class android.support.v8.renderscript.** { *; }

-keep class com.crashlytics.** { *; }
-dontwarn com.crashlytics.**

### OKIO

# java.nio.file.* usage which cannot be used at runtime. Animal sniffer annotation.
-dontwarn okio.Okio
# JDK 7-only method which is @hide on Android. Animal sniffer annotation.
-dontwarn okio.DeflaterSink



# com.google.zxing lib

# test thoroughly if you go this route.
-optimizations !code/simplification/cast,!field/*,!class/merging/*,!class/unboxing/enum,!code/allocation/variable,!method/marking/private
-optimizationpasses 5
-allowaccessmodification
-dontpreverify

# The remainder of this file is identical to the non-optimized version
# of the Proguard configuration file (except that the other file has
# flags to turn off optimization).

-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose

# ADDED
-dontshrink
#-dontobfuscate

-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
    native <methods>;
}

# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
   void set*(***);
   *** get*();
}

# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}


-keep class android.databinding.** { *; }
-keepnames class * implements java.io.Serializable
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    !static !transient <fields>;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}
-keepattributes *Annotation*
#-keepattributes javax.xml.bind.annotation.*



#-keepattributes javax.annotation.processing.*
-keepclassmembers class * extends java.lang.Enum { *; }
-keepclasseswithmembernames class android.**
-keepclasseswithmembernames interface android.**
#-dontobfuscate
-libraryjars  <java.home>/lib/rt.jar
-libraryjars  <java.home>/lib/jce.jar
-dontwarn


# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version.  We know about them, and they are safe.
-dontwarn android.support.**
#-printmapping prod/release/mapping/mapping.txt

-keepattributes Signature

# For using GSON @Expose annotation
-keepattributes *Annotation*

# Gson specific classes
-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }

# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }

-keep class com.wang.avi.** { *; }
-keep class com.wang.avi.indicators.** { *; }


# Prevent proguard from stripping interface information from TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer

##---------------End: proguard configuration for Gson  ----------

-keep class * implements com.coremedia.iso.boxes.Box {* ; }
-dontwarn com.coremedia.iso.boxes.*
-dontwarn com.googlecode.mp4parser.authoring.tracks.mjpeg.**
-dontwarn com.googlecode.mp4parser.authoring.tracks.ttml.**

# Preserve annotations, line numbers, and source file names
-keepattributes *Annotation*,SourceFile,LineNumberTable

-keep class com.appsflyer.** { *; }


# Proguard rule for XMLResourceParser
-keep class org.xmlpull.v1.** { *; }
-dontwarn org.xmlpull.v1.**

-dontwarn com.android.installreferrer.api.**

this is only happening after downloading the app from the play store. It works fine with debug but not working with the signed app bundle.

Sculpin

When you deploy locally, do you deploy APKs built from the app bundle? (Run configurations > Deploy > APK from app bundle). Have you tried on non Mi devices? – Janeyjangle

yes it works fine.. only not with after downloading from Play Store. means with released signed apk it's not working – Sculpin

I'm having the same error today with one update. When I tested from USB It was OK but when I dowloand the new versión from Play Store the app crash inmediatly. I enabled proguard minify for the first time. – Florinda

I don't know why the size of the bundle was about 3MB but at Play Store it was ¡189kb! I compiled another version deleting shrink option and now the size in Play Store is about 3MB (normal size i think because the real size it's about 8MB). But the app crash always in the new version. – Florinda

Answer 1

You must add this to your proguard-rules.pro file

-dontwarn org.xmlpull.v1.XmlPullParser
-dontwarn org.xmlpull.v1.XmlSerializer
-keep class org.xmlpull.v1.* {*;}

Imprudent

This fixed a similar problem in our Flutter app. The error suddenly started to appear in Google Play Pre-launch reports, and we were then able to replicate it using flutter run --release – Gratia

@Imprudent How did you manage to figure this out? I have a similar error, but I need to know the path you took to this solution. – Knighten