Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.

[thienphuoc]

• I followed the guide at https://firebase.google.com/docs/admob/cpp/cocos2d-x.
  When i build debug mode, (debug.apk) it works fine , but when i build release mode , it error with log :

06-11 09:33:07.161 2083-2109/com.mygame.game1 E/FirebaseInstanceId: Google Play services missing or without correct permission.
06-11 09:33:07.353 2083-2111/com.mygame.game1 E/firebase: Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.
clazz
06-11 09:33:07.353 2083-2111/com.mygame.game1 A/firebase: Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.

*build.grade (Project:proj.android)
buildscript {
repositories {
google()
jcenter()
}

dependencies {
    classpath 'com.android.tools.build:gradle:3.1.2'
    classpath 'com.google.gms:google-services:4.0.0'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}

}

allprojects {
repositories {
google()
jcenter()
}
}

*build.grade (Module App)
......
dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation project(':libcocos2dx')
implementation 'com.google.firebase:firebase-ads:15.0.1'
implementation 'com.google.firebase:firebase-core:16.0.0'

}

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

Is my application missing the firebase-ads-x-x.aar file ?

Can someone help me ? Thanks you very much!

[formatCvt]

Which version of cocos and firebase cpp sdk do you use?
I think you should add this to project dependencies
implementation 'com.google.android.gms:play-services-base:15.0.1'
implementation 'com.google.android.gms:play-services-ads:15.0.1'

[thienphuoc]

@formatCvt

I added this , But it's not working !

And then i created a new project named "sampleAdmob" , i also followed the guide https://firebase.google.com/docs/admob/cpp/cocos2d-x .

**After completing step : **
"3.Follow the steps to Add Firebase to your app that is located in the proj.android-studio/ directory."
-> i built debug and release .apk, it work fine !
.......
.......
**After completing step : **
"C++ integration"
-> i built debug .apk , it work fine . But the release .apk , it error with log :

06-13 11:53:27.935 3917-3948/? E/FirebaseInstanceId: Google Play services missing or without correct permission.
06-13 11:53:27.936 3917-3937/? V/FA: Connection attempt already in progress
06-13 11:53:27.937 3917-3937/? V/FA: Connection attempt already in progress
Activity resumed, time: 11913031
06-13 11:53:28.085 3917-3942/? D/EngineDataManager.cpp: setAnimationInterval by game: 0.0167
JNI setAnimationInterval: 0.016667
06-13 11:53:28.102 3950-3950/? E/cutils-trace: Error opening trace file: Permission denied (13)
06-13 11:53:28.102 3950-3950/? I/dex2oat: /system/bin/dex2oat --runtime-arg -classpath --runtime-arg --instruction-set=x86 --instruction-set-features=default --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --dex-file=/data/data/com.sample.admob/cache/app_resources_lib.jar --oat-fd=18 --oat-location=/data/data/com.sample.admob/code_cache/app_resources_lib.dex --runtime-arg -Xms64m --runtime-arg -Xmx512m
06-13 11:53:28.120 3950-3950/? I/dex2oat: dex2oat took 18.765ms (threads: 4)
06-13 11:53:28.124 3917-3942/? E/firebase: Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.
06-13 11:53:28.125 3917-3942/? E/firebase: clazz
06-13 11:53:28.125 3917-3942/? A/firebase: Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.
06-13 11:53:28.125 3917-3942/? A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 3942 (GLThread 297)
06-13 11:53:28.209 3917-3917/? D/Cocos2dxActivity: onWindowFocusChanged() hasFocus=true
06-13 11:53:28.213 3917-3917/? V/FA: Local AppMeasurementService is starting up
06-13 11:53:28.214 843-843/com.android.launcher3 W/IInputConnectionWrapper: showStatusIcon on inactive InputConnection
06-13 11:53:28.229 121-121/? I/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'generic/vbox86p/vbox86p:5.0/LRX21M/genymotion09281726:userdebug/test-keys'
Revision: '0'
ABI: 'x86'
pid: 3917, tid: 3942, name: GLThread 297 >>> com.sample.admob <<<
signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
06-13 11:53:28.230 573-601/system_process I/ActivityManager: Displayed com.sample.admob/org.cocos2dx.cpp.AppActivity: +960ms
06-13 11:53:28.234 121-121/? I/DEBUG: Abort message: 'Java class com/google/firebase/FirebaseApp not found. Please verify the AAR which contains the com/google/firebase/FirebaseApp class is included in your app.'
eax 00000000 ebx 00000f4d ecx 00000f66 edx 00000006

I use :
Android Studio 3.1.2
Cocos2d-x 3.17 (latest version)
NDK: android-ndk-r16b

Have you built the cocos2dx-cpp-sample with release mode ?

Could you please give me a sample project with successful release build ?

Thanks you very much @formatCvt !

[formatCvt]

yes, we have about 5 projects with admob integration. Cocos developers made a lot of changes in 3.17 for Android and samples a little bit not valid right now.
Try to disable proguard. In your app/build.gradle find release build type and disable minification (set minifyEnabled false). If it helps you can restore minification and add correspond proguard rules

        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        proguardFile file(project.ext.firebase_cpp_sdk_dir + "/libs/android/app.pro")
        proguardFile file(project.ext.firebase_cpp_sdk_dir + "/libs/android/analytics.pro")
        proguardFile file(project.ext.firebase_cpp_sdk_dir + "/libs/android/admob.pro")
        [...and so on, for each Firebase C++ library and Ad SDK you are using.]

[thienphuoc]

@formatCvt Thanks you very much!
I resolved my problem . If anyone encounter this problem , plz follow below :

*project.android/gradle.properties:

systemProp.firebase_cpp_sdk.dir=../firebase_cpp_sdk
*proj.android\app\build.gradle:

project.ext {
// Configure the Firebase C++ SDK location.
firebase_cpp_sdk_dir = System.getProperty('firebase_cpp_sdk.dir')
if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
firebase_cpp_sdk_dir = System.getenv('FIREBASE_CPP_SDK_DIR')
if (firebase_cpp_sdk_dir == null || firebase_cpp_sdk_dir.isEmpty()) {
if ((new File('firebase_cpp_sdk')).exists()) {
firebase_cpp_sdk_dir = 'firebase_cpp_sdk'
} else {
throw new StopActionException(
'firebase_cpp_sdk.dir property or the FIREBASE_CPP_SDK_DIR ' +
'environment variable must be set to reference the Firebase C++ ' +
'SDK install directory. This is used to configure static library ' +
'and C/C++ include paths for the SDK.')
}
}
}
if (!(new File(firebase_cpp_sdk_dir)).exists()) {
throw new StopActionException(
sprintf('Firebase C++ SDK directory %s does not exist',
firebase_cpp_sdk_dir))
}
// Check the NDK location using the same configuration options as the
// experimental Gradle plug-in.
ndk_dir = project.android.ndkDirectory
if (ndk_dir == null || !ndk_dir.exists()) {
ndk_dir = System.getenv('ANDROID_NDK_HOME')
if (ndk_dir == null || ndk_dir.isEmpty()) {
throw new StopActionException(
'Android NDK directory should be specified using the ndk.dir ' +
'property or ANDROID_NDK_HOME environment variable.')
}
}
}
....
buildTypes {
release {
//debuggable false
//jniDebuggable false
//renderscriptDebuggable false
minifyEnabled false
//shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
proguardFile file(project.ext.firebase_cpp_sdk_dir + "/libs/android/app.pro")
proguardFile file(project.ext.firebase_cpp_sdk_dir + "/libs/android/admob.pro")
if (project.hasProperty("RELEASE_STORE_FILE")) {
signingConfig signingConfigs.release
}
..............................................

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation project(':libcocos2dx')
implementation 'com.google.firebase:firebase-core:16.0.0'
implementation 'com.google.firebase:firebase-ads:15.0.1'
implementation 'com.google.firebase:firebase-common:16.0.0'

}
.......

ref : https://github.com/firebase/quickstart-cpp/blob/master/admob/testapp/build.gradle

Hope this help you ! If you cannot solve your problem, plz contact @formatCvt for help ! He is very good 👍 ^^

[formatCvt]

you're welcome =)

by the way, don't forget enable Test Ads IDs for development builds (https://developers.google.com/admob/android/test-ads). Using production Ads IDs for developments builds can be reason for account suspension (our account is suspended right now and it is very-very hard to unsuspend account)

[thienphuoc]

I enabled Test Ads IDs ! Thanks you for your help ! 👍 👍 Have a nice day bro !