Develop Reference

Kotlin Multiplatform + Sentry

I want to use Sentry for my Multiplatform Kotlin project.
Sentry for Kotlin Multiplatform
So I was trying to prepare the setup of Sentry with Kotlin Multiplatform.
I was following the guide, made a mavenLocal() build etc.
Now I wanted to add it to the project.
However, when starting my (Android) project, even before starting the onCreate() of the Application I get a crash stating:
Unable to get provider io.sentry.android.core.SentryInitProvider:
java.lang.IllegalArgumentException: DSN is required. Use empty string to disable SDK.
So to be clear this happens already when adding api("io.sentry:sentry-kotlin-multiplatform:0.0.1") to the dependencies. Long before the init call.
All I did was:
Configure shared build.gradle.kts and add
val commonMain by getting {
dependencies {
api("io.sentry:sentry-kotlin-multiplatform:0.0.1")
Adding the sample configuration
fun initializeSentry(context: Context) {
Sentry.init(context) { sentryOptions -> setDsnHere... }
}
and in the Android Application:
initializeSentry(this)
Then tried to run it. But I don't even get to the init call.
The configuration should be reached and the initializeSentry(this) block executed. (I can accept if it fails there but I don't even get that far.)
Instead the app fails stating
E/AndroidRuntime: FATAL EXCEPTION: main
Process: xyz, PID: 23056
java.lang.RuntimeException: Unable to get provider io.sentry.android.core.SentryInitProvider: java.lang.IllegalArgumentException: DSN is required. Use empty string to disable SDK.
at android.app.ActivityThread.installProvider(ActivityThread.java:7467)
...
even before anything else.
So the mere adding to the gradle file causes the crash already (even if the other code is commented out).
-------- Full Stack trace-------
java.lang.RuntimeException: Unable to get provider io.sentry.android.core.SentryInitProvider: java.lang.IllegalArgumentException: DSN is required. Use empty string to disable SDK.
at android.app.ActivityThread.installProvider(ActivityThread.java:7467)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6973)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6744)
at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2133)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7872)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)
Caused by: java.lang.IllegalArgumentException: DSN is required. Use empty string to disable SDK.
at io.sentry.Sentry.initConfigurations(Sentry.java:201)
at io.sentry.Sentry.init(Sentry.java:170)
at io.sentry.Sentry.init(Sentry.java:118)
at io.sentry.android.core.SentryAndroid.init(SentryAndroid.java:87)
at io.sentry.android.core.SentryAndroid.init(SentryAndroid.java:56)
at io.sentry.android.core.SentryInitProvider.onCreate(SentryInitProvider.java:27)
at android.content.ContentProvider.attachInfo(ContentProvider.java:2451)
at android.content.ContentProvider.attachInfo(ContentProvider.java:2421)
at io.sentry.android.core.SentryInitProvider.attachInfo(SentryInitProvider.java:44)
at android.app.ActivityThread.installProvider(ActivityThread.java:7462)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6973) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6744) 
at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2133) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loopOnce(Looper.java:201) 
at android.os.Looper.loop(Looper.java:288) 
at android.app.ActivityThread.main(ActivityThread.java:7872) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936) 

Turns out the manual had forgotten to mention the auto configuration.
Add this line to your Manifest:
<meta-data android:name="io.sentry.auto-init" android:value="false" />
and proceed with the tutorial.
For Reference:
https://github.com/getsentry/sentry-kotlin-multiplatform/issues/45

Android java.lang.ClassNotFoundException: Didn't find class

I'm a total Android newbie here, so hopefully someone can help me out.
I have an Android library (myLib.aar) that I am including/using in the HelloAR demo app.
Now, I want to use Instacapture within myLib.aar. I followed the instructions on the README:
dependencies {
...
compile "com.github.tarek360:instacapture:2.0.1"
}
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}
}
I also tried downloading, compiling instacapture source, adding the instacapture.aar to my libs dir and modifying my Gradle files:
dependencies{
...
implementation(name:'instacapture', ext:'aar')
}
allprojects {
repositories {
...
flatDir {
dirs 'libs'
}
}
In both cases, I get the following exception:
--------- beginning of crash
2020-08-11 22:34:35.965 32761-32761/com.google.ar.core.examples.java.helloar E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.google.ar.core.examples.java.helloar, PID: 32761
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/tarek360/instacapture/Instacapture;
at com.cambridge.myLib.ScreenShotter.takeScreenshot(ScreenShotter.java:139)
at com.google.ar.core.examples.java.helloar.HelloArActivity$2.run(HelloArActivity.java:164)
at com.google.ar.core.examples.java.helloar.HelloArActivity.startRepeatingTask(HelloArActivity.java:171)
at com.google.ar.core.examples.java.helloar.HelloArActivity$1.run(HelloArActivity.java:152)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.tarek360.instacapture.Instacapture" on path: DexPathList[[zip file "/data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/base.apk"],nativeLibraryDirectories=[/data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/lib/arm64, /data/app/com.google.ar.core.examples.java.helloar-bhCcJ--GEjsJ6mxAFvnUYw==/base.apk!/lib/arm64-v8a, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.cambridge.myLib.ScreenShotter.takeScreenshot(ScreenShotter.java:139)
at com.google.ar.core.examples.java.helloar.HelloArActivity$2.run(HelloArActivity.java:164)
at com.google.ar.core.examples.java.helloar.HelloArActivity.startRepeatingTask(HelloArActivity.java:171)
at com.google.ar.core.examples.java.helloar.HelloArActivity$1.run(HelloArActivity.java:152)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:237)
at android.app.ActivityThread.main(ActivityThread.java:8107)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
However, if I add the dependencies to the main HelloAR app (as per the instructions in the README), the issue resolves.
Can someone please explain what is going on, why I'm getting the error, and how to resolve it without having to add the dependencies to the main HelloAR app?

Considering your quote,
I'm a total Android newbie here, so hopefully someone can help me out.
Follow these steps (in android studio) :
Go to build menu.
Clean the project by clicking on clean project.
Build the project by clicking on make project.
This process is known as clean build which is usually done after adding some dependencies.

how to solve this firebase IllegalStateException when use goolge analytics

Projects
dependencies {
classpath 'com.google.gms:google-services:3.0.0'
}
Module
dependencies {
compile 'com.google.android.gms:play-services-analytics:10.0.0'
}
It just happened in 8.0 system, but i haven't used any firebase code in my project
Fatal Exception: java.lang.IllegalStateException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.REGISTER pkg=com.google.android.gsf (has extras) }: app is in background uid UidRecord{e2ab7c6 u0a30 CEM idle procs:1 seq(0,0,0)}
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1538)
at android.app.ContextImpl.startService(ContextImpl.java:1484)
at android.content.ContextWrapper.startService(ContextWrapper.java:663)
at com.google.firebase.iid.zzf.zzbi(Unknown Source:149)
at com.google.firebase.iid.zzf.zzbi(Unknown Source:235)
at com.google.firebase.iid.zzf.zzt(Unknown Source:20)
at com.google.firebase.iid.zzf.zzbi(Unknown Source)
at com.google.firebase.iid.zzd.zzGu(Unknown Source:57)
at com.google.firebase.iid.zzd.getCreationTime(Unknown Source:49)
at com.google.firebase.iid.FirebaseInstanceId.getInstance(Unknown Source:3)
at com.google.firebase.iid.FirebaseInstanceId.zzaae(Unknown Source:4)
at com.google.firebase.iid.FirebaseInstanceIdService.zzH(Unknown Source:37)
at com.google.firebase.iid.FirebaseInstanceIdService.zzm(Unknown Source:35)
at com.google.firebase.iid.zzb$2.run(Unknown Source:4)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
I can't remove firebase from my project, is there other ways to solve this problem?
Fabric report

You should first try on the main menu, choose File | Invalidate Caches/Restart. this can happen if Android studio gets in a bad state.
It should also be noted that firebase is probably in play-services-analytics. Ever since google bought them out they have put firebase in many of their google play services libraries.

Application crashing on some devices because "Default FirebaseApp is not initialized in this process"

I am using Firebase Crash Reporting and Firebase Remote Config. Version of both is 9.8.0.
On most devices setup works perfectly (I followed Set up crash reporting). But on small percentage of devices (it is actually crash with the highest occurrence) it crashes when I try to initialize Remote Config in Application onCreate method.
java.lang.RuntimeException: Unable to create application com.company.application.AppApplication: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.company.application. Make sure to call FirebaseApp.initializeApp(Context) first.
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6429)
at android.app.ActivityThread.access$1800(ActivityThread.java:229)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1887)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7329)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.company.application. Make sure to call FirebaseApp.initializeApp(Context) first.
at com.google.firebase.a.d(Unknown Source)
at com.google.firebase.b.a.a(Unknown Source)
at com.company.application.d.a.a(SourceFile:21)
at com.company.application.AppApplication.onCreate(SourceFile:76)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1037)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6426)
... 8 more

Prior to version 10.0.0, Firebase Crash created an additional process in your app named background_crash. An instance of your AppApplication class is created and executed for each process in your app, including background_crash.
If you want to perform initialization of Firebase services in your application class, you need to add a guard to prevent the initialization from being performed in background_crash. On way to do that is:
if (!FirebaseApp.getApps(this).isEmpty()) {
// Not in crash process. Do your Remote Config init here.
}
Another solution is to upgrade to the latest version of Firebase, 10.0.1.
Assuming this answer is valid, I can't explain why the failure only occurs on some devices, unless the version of Google Play Services installed on the device is a factor, and the failing devices have an older version.

set classpath 'com.google.gms:google-services:4.0.1' in dependencies.
Implement the androidTestImplementation dependencies :
androidTestImplementation('com.android.support.test.espresso:espresso-core:.2.2',
{
exclude group: 'com.android.support', module: 'support-annotations'
})

Firebase Crash Reporting : FirebaseApp with name [DEFAULT] doesn't exist

This an exception I encountered when trying to use FirebaseAuth and Firebase Crash Reporting. I am trying to sign in anonymously in my application onCreate
public class MainApplication extends Application {
#Override
public void onCreate() {
super.onCreate();
FirebaseAuth firebaseAuth = FirebaseAuth.getInstance();
firebaseAuth.signInAnonymously().addOnCompleteListener(task -> {
if (task.isSuccessful()) {
Log.wtf("TAG", "Signed signInAnonymously successful ");
}
});
}
}
I also want to use crash reporting so my gradle dependencies looks like this.
dependencies {
// other dependencies
// ...
compile 'com.google.firebase:firebase-core:9.2.1'
compile 'com.google.firebase:firebase-storage:9.2.1'
compile 'com.google.firebase:firebase-auth:9.2.1'
compile 'com.google.firebase:firebase-config:9.2.1'
compile 'com.google.firebase:firebase-crash:9.2.1'
}
apply plugin: 'com.google.gms.google-services'
After a certain amount of time I will get a crash dialog and this exception. Its another process that crashes so the app itself will still run.
java.lang.RuntimeException: Unable to create application com.android.tools.fd.runtime.BootstrapApplication: java.lang.IllegalStateException: FirebaseApp with name [DEFAULT] doesn't exist.
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4612)
at android.app.ActivityThread.access$1600(ActivityThread.java:169)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1337)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5476)
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:1268)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: FirebaseApp with name [DEFAULT] doesn't exist.
at com.google.firebase.FirebaseApp.getInstance(Unknown Source)
at com.google.firebase.FirebaseApp.getInstance(Unknown Source)
at com.google.firebase.auth.FirebaseAuth.getInstance(Unknown Source)
at com.redstar.collectors.MainApplication.onCreate(MainApplication.java:22)
at com.android.tools.fd.runtime.BootstrapApplication.onCreate(BootstrapApplication.java:369)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1013)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4609)
at android.app.ActivityThread.access$1600(ActivityThread.java:169) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1337) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5476) 
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:1268) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084) 
at dalvik.system.NativeStart.main(Native Method)
If I remove the firebase-crash dependency there will be no crash.

FirebaseApp with name [DEFAULT] doesn't exist is caused when you run Firebase code on the separate process that is created by Firebase Crash Reporting as your custom Application class is created for each process in your app.
You should move code from your Application class to somewhere else. This could be in your main activity (which would always be in your main process) or could be in the onCreate() of a separate ContentProvider you register in your Manifest (a ContentProvider's onCreate() is run once in the lifecycle of your app's process just like Application.onCreate(), but only runs in a single process).