Firestore v24.4.3, ClassNotFoundException: com.google.firebase.annotations.concurrent.Background

[adaonder]

[REQUIRED] Step 2: Describe your environment

• Android Studio version: Android Studio Electric Eel | 2022.1.1 Patch 1
• Firebase Component: Firestore
• Component version: 24.4.3
• Kotlin: 1.8.0
• Android Device TE590 Android 6.0
• (No Problem) 24.4.2 -> (Start Problem) 24.4.3

[REQUIRED] Step 3: Describe the problem

app is not opening

Steps to reproduce:

app is not opening

Log:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.globme.launcher, PID: 18837
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/firebase/annotations/concurrent/Background;
at com.google.firebase.installations.FirebaseInstallationsRegistrar.getComponents(FirebaseInstallationsRegistrar.java:45)
at com.google.firebase.tracing.ComponentMonitor.processRegistrar(ComponentMonitor.java:28)
at com.google.firebase.components.ComponentRuntime.discoverComponents(ComponentRuntime.java:117)
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:99)
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:46)
at com.google.firebase.components.ComponentRuntime$Builder.build(ComponentRuntime.java:387)
at com.google.firebase.FirebaseApp.(FirebaseApp.java:437)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:303)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:271)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:256)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(FirebaseInitProvider.java:51)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1801)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1776)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(FirebaseInitProvider.java:45)
at android.app.ActivityThread.installProvider(ActivityThread.java:5427)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:5000)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4940)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1549)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5728)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.annotations.concurrent.Background" on path: DexPathList[[zip file "/data/app/com.globme.launcher-1/base.apk"],nativeLibraryDirectories=[/data/app/com.globme.launcher-1/lib/arm64, /vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.google.firebase.installations.FirebaseInstallationsRegistrar.getComponents(FirebaseInstallationsRegistrar.java:45) 
at com.google.firebase.tracing.ComponentMonitor.processRegistrar(ComponentMonitor.java:28) 
at com.google.firebase.components.ComponentRuntime.discoverComponents(ComponentRuntime.java:117) 
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:99) 
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:46) 
at com.google.firebase.components.ComponentRuntime$Builder.build(ComponentRuntime.java:387) 
at com.google.firebase.FirebaseApp.(FirebaseApp.java:437) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:303) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:271) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:256) 
at com.google.firebase.provider.FirebaseInitProvider.onCreate(FirebaseInitProvider.java:51) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1801) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1776) 
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(FirebaseInitProvider.java:45) 
at android.app.ActivityThread.installProvider(ActivityThread.java:5427) 
at android.app.ActivityThread.installContentProviders(ActivityThread.java:5000) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4940) 
at android.app.ActivityThread.-wrap1(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1549) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:207) 
at android.app.ActivityThread.main(ActivityThread.java:5728) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679) 
Suppressed: java.lang.ClassNotFoundException: com.google.firebase.annotations.concurrent.Background
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 26 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

[thatfiredev]

@adaonder Can you share the dependencies you have in your app's build.gradle file? I'm more interested in seeing the list of Firebase dependencies you have declared.

Also: is this happening in a debug or release version of your app? Do you have proguard enabled?

[adaonder]

error in debug

My build.gradle;

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'

android {
compileSdkVersion 33
defaultConfig {
applicationId "com.xxx.yyy"
minSdkVersion 21
targetSdkVersion 32
versionCode 33
versionName "2.1"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled true
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
/debug {
minifyEnabled(true)
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}/
}
buildFeatures {
viewBinding true
}
namespace 'com.xxx.yyy'
}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.0'
implementation 'androidx.appcompat:appcompat:1.6.1'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.media:media:1.6.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'

testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test:runner:1.5.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
implementation 'com.google.android.material:material:1.8.0'

implementation 'com.google.firebase:firebase-storage:20.1.0'
implementation 'com.google.firebase:firebase-auth:21.1.0'
implementation 'com.google.firebase:firebase-core:21.1.1'
implementation 'com.google.firebase:firebase-firestore:24.4.3'
implementation 'com.google.firebase:firebase-crashlytics:18.3.4'
implementation 'com.google.firebase:firebase-analytics:21.2.0'

implementation 'com.google.code.gson:gson:2.10.1'

}

[adaonder]

proguard-rules->

-keep class com.xxx.yyy.databinding.** { ; }
-keep class com.xxx.yyy.model.* { *; }

-keep class androidx.** { ; }
-keep class android.* { ; }
-keep class com.google.* { *; }

[adaonder]

I'm still getting the same error. I just run, it explodes.

[pblowers]

I'm also getting this same error on launch in both debug and release builds. No proguard rules.

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/firebase/annotations/concurrent/Background;
at com.google.firebase.installations.FirebaseInstallationsRegistrar.getComponents(FirebaseInstallationsRegistrar.java:45)
at com.google.firebase.tracing.ComponentMonitor.processRegistrar(ComponentMonitor.java:28)
at com.google.firebase.components.ComponentRuntime.discoverComponents(ComponentRuntime.java:117)
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:99)
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:46)
at com.google.firebase.components.ComponentRuntime$Builder.build(ComponentRuntime.java:387)
at com.google.firebase.FirebaseApp.(FirebaseApp.java:437)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:303)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:271)
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:256)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(FirebaseInitProvider.java:51)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1940)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1915)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(FirebaseInitProvider.java:45)
at android.app.ActivityThread.installProvider(ActivityThread.java:6930)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6477)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6381)
at android.app.ActivityThread.access$1300(ActivityThread.java:248)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1830)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:216)
at android.app.ActivityThread.main(ActivityThread.java:7266)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.annotations.concurrent.Background" on path: DexPathList[[zip file "/data/app/com.diagsys.mobiledigitalwrench-KB8Rb5tYrZafb3YInPpmQQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.diagsys.mobiledigitalwrench-KB8Rb5tYrZafb3YInPpmQQ==/lib/arm, /data/app/com.diagsys.mobiledigitalwrench-KB8Rb5tYrZafb3YInPpmQQ==/base.apk!/lib/armeabi-v7a, /system/lib, /system/vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.google.firebase.installations.FirebaseInstallationsRegistrar.getComponents(FirebaseInstallationsRegistrar.java:45) 
at com.google.firebase.tracing.ComponentMonitor.processRegistrar(ComponentMonitor.java:28) 
at com.google.firebase.components.ComponentRuntime.discoverComponents(ComponentRuntime.java:117) 
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:99) 
at com.google.firebase.components.ComponentRuntime.(ComponentRuntime.java:46) 
at com.google.firebase.components.ComponentRuntime$Builder.build(ComponentRuntime.java:387) 
at com.google.firebase.FirebaseApp.(FirebaseApp.java:437) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:303) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:271) 
at com.google.firebase.FirebaseApp.initializeApp(FirebaseApp.java:256) 
at com.google.firebase.provider.FirebaseInitProvider.onCreate(FirebaseInitProvider.java:51) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1940) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1915) 
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(FirebaseInitProvider.java:45) 
at android.app.ActivityThread.installProvider(ActivityThread.java:6930) 
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6477) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6381) 
at android.app.ActivityThread.access$1300(ActivityThread.java:248) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1830) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:216) 
at android.app.ActivityThread.main(ActivityThread.java:7266) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975) 

---

Firebase dependencies:
implementation("com.google.firebase:firebase-bom:31.2.1")
implementation("com.google.firebase:firebase-crashlytics:18.3.4")
implementation("com.google.firebase:firebase-analytics:21.2.0")

[thatfiredev]

@adaonder Thank you for sharing your dependencies.

I managed to reproduce the error and it seems like we currently have a problem in projects that are not using the Firebase Bill of Materials (BoM). I'll work with the team to fix this.

In the meantime, may I suggest that you upgrade to the BoM? As described in the docs, by using the BoM you no longer need to specify each version on the dependencies:

// Import the BoM
implementation platform('com.google.firebase:firebase-bom:31.2.1')

implementation 'com.google.firebase:firebase-storage'
implementation 'com.google.firebase:firebase-auth'
// (firebase-core is no longer needed)
implementation 'com.google.firebase:firebase-firestore'
implementation 'com.google.firebase:firebase-crashlytics'
implementation 'com.google.firebase:firebase-analytics'

It should fix your issue and prevent from running into similar issues in the future.

[thatfiredev]

@pblowers It seems like you're not using the BoM correctly - you're missing the platform() function. And you don't need to specify the versions for crashlytics and analytics when the BoM is applied:

implementation(platform("com.google.firebase:firebase-bom:31.2.1"))
implementation("com.google.firebase:firebase-crashlytics")
implementation("com.google.firebase:firebase-analytics")

[pblowers]

That did it for me, thank you very much!

[argzdev]

Hi all, our engineer have created #4683 which contains details of what's currently happening regarding the issue, and the current workaround. That said, for better tracking we'll keep that issue open and mark this one as duplicate.

For others who experience the same issue, if you have any further questions, please follow up on the said post. Thanks!

[adaonder]

Thanks for your support.