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Unable to load firebase Init provider - android studio

I cant solve this bug for many days. It happens only when I connect firebase realtime database.
Process: com.bae.dialogflowbot, PID: 4982
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/base.apk"],nativeLibraryDirectories=[/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/lib/x86, /system/lib, /system_ext/lib]]
at android.app.ActivityThread.installProvider(ActivityThread.java:7244)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6780)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6697)
at android.app.ActivityThread.access$1300(ActivityThread.java:237)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
**Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[**[zip file "/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/base.apk"],nativeLibraryDirectories=[/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/lib/x86, /system/lib, /system_ext/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

I tried this and it seemed to work. Go to your gradle and comment out this line:
implementation platform('com.google.firebase:firebase-bom:29.0.3')
Use this one:
implementation platform('com.google.firebase:firebase-bom:27.0.0')
I had FMS working on one project and tried to fold it back into another, but got the same error. After a bunch of unsuccessful searches, I tried making changes to each setting to mirror the first project and this one seemed to work.

Error when running Unity Project (Vuforia) as a library in Android Studio

Im trying to run Unity Project using Vuforia as a library in Android studio. I have added a button that will go to the UnityPlayerActivity. The apps running just fine but after i clicked the button. Only the unity logo appeared and the screen goes black.
This is from the logcat
2019-10-11 03:02:54.469 4448-4481/com.example.myapplication E/Unity: AndroidJavaException: java.lang.ClassNotFoundException: com.vuforia.VuforiaUnityPlayer.VuforiaInitializer
java.lang.ClassNotFoundException: com.vuforia.VuforiaUnityPlayer.VuforiaInitializer
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:453)
at java.lang.Class.forName(Class.java:378)
at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
at com.unity3d.player.UnityPlayer.c(Unknown Source:0)
at com.unity3d.player.UnityPlayer$e$2.queueIdle(Unknown Source:72)
at android.os.MessageQueue.next(MessageQueue.java:395)
at android.os.Looper.loop(Looper.java:160)
at com.unity3d.player.UnityPlayer$e.run(Unknown Source:32)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.vuforia.VuforiaUnityPlayer.VuforiaInitializer" on path: DexPathList[[zip file "/data/app/com.example.myapplication-PaLDsjUgOPrhAiCRyAOD0w==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.myapplication-PaLDsjUgOPrhAiCRyAOD0w==/lib/x86, /data/app/com.example.myapplication-
2019-10-11 03:02:54.520 4448-4488/com.example.myapplication D/NetworkSecurityConfig: No Network Security Config specified, using platform default
2019-10-11 03:02:54.526 4448-4481/com.example.myapplication E/Unity: Vuforia Engine cannot be started before it is initialized.
Please disable Delayed Initializationin the Vuforia configuration or initialize Vuforia manually with the VuforiaRuntime-class.
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:LogError(Object)
Vuforia.VuforiaARController:Start()
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo)
System.Reflection.MethodBase:Invoke(Object, Object[])
System.Delegate:DynamicInvokeImpl(Object[])
System.MulticastDelegate:DynamicInvokeImpl(Object[])
System.Delegate:DynamicInvoke(Object[])
Vuforia.DelegateHelper:InvokeDelegate(Delegate, Object[])
Vuforia.DelegateHelper:InvokeWithExceptionHandling(Action)
Vuforia.VuforiaBehaviour:Start()

How to avoid appcrashes in Android 9 with AmazonSNSClient?

In Android 9 (API 28) my App crashes when creating a new AmazonSNSClient (in API 26 I don't get any errors):
AmazonSNSClient pushClient = new AmazonSNSClient(credentialsProvider);
My LogCat says:
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/commons/logging/LogFactory;
at com.amazonaws.AmazonWebServiceClient.<clinit>(AmazonWebServiceClient.java:55)
at myapp.service.AWSMessagingService.createEndpoint(AWSMessagingService.java:170)
at myapp.service.AWSMessagingService.registerWithSNS(AWSMessagingService.java:103)
at myapp.service.PushNotificationService.sendRegistrationToAWS(PushNotificationService.java:109)
at myapp.service.PushNotificationService.onNewToken(PushNotificationService.java:105)
at com.google.firebase.messaging.FirebaseMessagingService.zzd(Unknown Source:86)
at com.google.firebase.iid.zzg.run(Unknown Source:4)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at com.google.android.gms.common.util.concurrent.zza.run(Unknown Source:7)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.commons.logging.LogFactory" on path: DexPathList[[zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/base.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_dependencies_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_resources_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_0_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_1_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_2_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_3_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_4_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_5_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_6_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_7_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_8_apk.apk", zip file "/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/base.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_dependencies_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_resources_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_0_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_1_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_2_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_3_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_4_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_5_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_6_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_7_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_8_apk.apk!/lib/x86, /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_slice_9_apk.apk!/lib/x86, /system/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.amazonaws.AmazonWebServiceClient.<clinit>(AmazonWebServiceClient.java:55) 
at myapp.service.AWSMessagingService.createEndpoint(AWSMessagingService.java:170) 
at myapp.service.AWSMessagingService.registerWithSNS(AWSMessagingService.java:103) 
at myapp.service.PushNotificationService.sendRegistrationToAWS(PushNotificationService.java:109) 
at myapp.service.PushNotificationService.onNewToken(PushNotificationService.java:105) 
at com.google.firebase.messaging.FirebaseMessagingService.zzd(Unknown Source:86) 
at com.google.firebase.iid.zzg.run(Unknown Source:4) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
at com.google.android.gms.common.util.concurrent.zza.run(Unknown Source:7) 
at java.lang.Thread.run(Thread.java:764) 
2018-12-17 09:25:07.483 10291-10344/myapp E/AndroidRuntime: Suppressed: java.io.IOException: No original dex files found for dex location /data/app/myapp-grqOb2dmxK1zDq9u44b9Rg==/split_lib_resources_apk.apk
at dalvik.system.DexFile.openDexFileNative(Native Method)
at dalvik.system.DexFile.openDexFile(DexFile.java:354)
at dalvik.system.DexFile.<init>(DexFile.java:101)
at dalvik.system.DexFile.<init>(DexFile.java:75)
at dalvik.system.DexPathList.loadDexFile(DexPathList.java:394)
at dalvik.system.DexPathList.makeDexElements(DexPathList.java:354)
at dalvik.system.DexPathList.<init>(DexPathList.java:164)
at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:74)
at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:65)
at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:64)
at com.android.internal.os.ClassLoaderFactory.createClassLoader(ClassLoaderFactory.java:73)
at com.android.internal.os.ClassLoaderFactory.createClassLoader(ClassLoaderFactory.java:88)
at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:74)
at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:40)
at android.app.LoadedApk.createOrUpdateClassLoaderLocked(LoadedApk.java:727)
at android.app.LoadedApk.getClassLoader(LoadedApk.java:810)
at android.app.LoadedApk.getResources(LoadedApk.java:1032)
at android.app.ContextImpl.createAppContext(ContextImpl.java:2345)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5749)
at android.app.ActivityThread.access$1100(ActivityThread.java:199)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1650)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I found out that I can avoid the error if I don't exclude "commons-logging" from "com.amazonaws:aws-android-sdk-sns" in my build.gradle, so I replaced:
implementation 'com.amazonaws:aws-android-sdk-sns:2.2.0', {
exclude module: 'commons-logging'
}
with:
implementation 'com.amazonaws:aws-android-sdk-sns:2.2.0'
The app works fine now but I can't build a signed APK because I get
the error "DuplicatePlatformClasses: Duplicate Platform Classes" and
my Lint Report says:
commons-logging defines classes that conflict with classes now
provided by Android. Solutions include finding newer versions or
alternative libraries that don't have the same problem (for example,
for httpclient use HttpUrlConnection or okhttp instead), or
repackaging the library using something like jarjar. There are a
number of libraries that duplicate not just functionality of the
Android platform but using the exact same class names as the ones
provided in Android -- for example the apache http classes. This can
lead to unexpected crashes.
To solve this, you need to either find a newer version of the library
which no longer has this problem, or to repackage the library (and all
of its dependencies) using something like the jarjar tool, or finally,
rewriting the code to use different APIs (for example, for http code,
consider using HttpUrlConnection or a library like okhttp). Note: This
issue has an associated quickfix operation in Android Studio and
IntelliJ IDEA. To suppress this error, use the issue id
"DuplicatePlatformClasses" as explained in the Suppressing Warnings
and Errors section.
So I ran "gradlew app:dependencies > dependencies.txt" in the terminal in my project folder and found out that "com.amazonaws:aws-android-sdk-sns:2.2.0" uses "commons-logging:commons-logging:1.1.1" but I can also find "commons-logging:commons-logging:1.2" which is "provided by Android" I guess?
So why does "com.amazonaws:aws-android-sdk-sns:2.2.0" not use "commons-logging:commons-logging:1.2" if I exclude "commons-logging:commons-logging:1.1.1" and how can I fix this issue?

I could solve the error by updating "com.amazonaws:aws-android-sdk-sns:2.2.0" to a newer version (in my case "com.amazonaws:aws-android-sdk-sns:2.9.1").
The NoClassDefFoundError in Android 9 is also tracked in this issue:
https://github.com/aws-amplify/aws-sdk-android/issues/476

Didn't find class "com.google.android.gms.common.app.GmsApplication"

I have got a problem when running my app on Android 4.4 with Google Play Services version 100884030. I get the following error:
FATAL EXCEPTION: main
Process: com.google.android.gms, PID: 8678
java.lang.RuntimeException: Unable to instantiate application com.google.android.gms.common.app.GmsApplication: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.app.GmsApplication" on path: DexPathList[[zip file "/system/framework/com.android.media.remotedisplay.jar", zip file "/system/framework/com.android.location.provider.jar", zip file "/system/framework/com.google.android.ble.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:507)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4301)
at android.app.ActivityThread.access$1500(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.app.GmsApplication" on path: DexPathList[[zip file "/system/framework/com.android.media.remotedisplay.jar", zip file "/system/framework/com.android.location.provider.jar", zip file "/system/framework/com.google.android.ble.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.app.Instrumentation.newApplication(Instrumentation.java:975)
at android.app.LoadedApk.makeApplication(LoadedApk.java:502)
... 11 more
My Gradle settings:
compileSdkVersion 25
buildToolsVersion "25.0.2"
minSdkVersion 14
targetSdkVersion 22
....
compile 'com.google.android.gms:play-services-analytics:10.2.1'
compile 'com.google.android.gms:play-services-ads:10.2.1'
So you see what is the problem?
Thanks !!!

I had an identical problem, I think, and it turned out that the .apk on the device was corrupted. Maybe by an internal flash storage (hardware) problem?
This is what I did:
Turn on Developer Settings on the device (by tapping the Build Number seven times in the About screen of Settings).
From the Developer Settings menu that appeared, turn on USB Debugging.
Connect to a PC with adb installed.
Find the path of the existing Google Play Services apk on the device, with adb shell pm path com.google.android.gms
Use that path to pull the existing apk from the device, to check it, with adb pull /data/app/com.google.android.gms-1/base.apk (replace the path here with what you got at point 4).
Check if the apk is broken, by changing its extension to .zip, and doing a zip integrity test. In my case it said classes2.dex bad CRC.
Download a good apk from somewhere trusted. Another identical device would be perfect, but I didn't have one, so I got mine from apkmirror.com (make sure you pick the right variant, there are a number of them for the same version number). The one I downloaded had the same number of bytes as the one pulled from the phone, but a segment of data inside was different.
Install the downloaded apk with adb install -r <downloaded file>.
Reboot the device.
That's it. Everything worked after this.

Android Studio Errors moments after new project creation

I am try to create a simple hello world app for android. I created a new android project, with blank activity, the first thing I see is:
Error:(1, 0) Plugin is too old, please update to a more recent
version, or set ANDROID_DAILY_OVERRIDE environment variable to
"df94d6841b68f9e80ddebea52ebc092b1d66cb93" Fix plugin version and sync projectOpen
File
This I fixed after changing gradle wrapper properties to https://services.gradle.org/distributions/gradle-2.11-all.zip (it was 2.8 earlier)
Then I changed com.android.tools.build:gradle:2.0.0-alpha2 to beta2.
Atleast the gradle sync worked, so I decided to run the project. It compiled, pushed the apk to my device, followed by this crash :
Caused by: java.lang.ClassNotFoundException: Didn't find class
"com.poketpixels.gcmfinal.MainActivity" on path: DexPathList[[zip file
"/data/app/com.poketpixels.gcmfinal-1/base.apk"],nativeLibraryDirectories=[/vendor/lib,
/system/lib]]
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 android.app.Instrumentation.newActivity(Instrumentation.java:1066)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2259)
at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2420) 
at android.app.ActivityThread.access$900(ActivityThread.java:154) 
at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5294) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699) 
Suppressed: java.lang.ClassNotFoundException:
com.poketpixels.gcmfinal.MainActivity
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)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the
boot class loader; no stack available
Why are there gradle version conflicts just after I create a fresh
project.
Why are there app crashes too ?

First disconnect from a network before starting your android studio. After it's started you can now connect back to a network and update your sdk's.
Then take a cup of coffee.