Develop Reference

"React Native with Android aar library" ClassNotFoundException: kotlin.LazyKt

I’m using my own Android library that done on Kotlin.
I build that library into the *.aar file and import in separate project on React Native.
The crash appears in Android React Native app when I start Service from that library, where some field initialized by lazy way.
I could not find an error similar to "Lkotlin / LazyKt" or "kotlin.LazyKt". Maybe someone faced a similar problem? I would be grateful for any tip.
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.project_mobile:sdmp, PID: 18913
java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/LazyKt;
at com.project.service.SdmService.<init>(SdmService.kt:27)
at java.lang.Class.newInstance(Native Method)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2859)
at android.app.ActivityThread.-wrap4(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1427)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "kotlin.LazyKt" on path: DexPathList[[zip file "/data/app/com.project_mobile-2/base.apk"],nativeLibraryDirectories=[/data/app/com.project_mobile-2/lib/arm, /data/app/com.project_mobile-2/base.apk!/lib/armeabi-v7a, /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 com.project.service.SdmService.<init>(SdmService.kt:27) 
at java.lang.Class.newInstance(Native Method) 
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2859) 
at android.app.ActivityThread.-wrap4(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1427) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Suppressed: java.lang.ClassNotFoundException: kotlin.LazyKt
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)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

Why the unsigned application does not find the Application class?

The application that I am developing is crashing in some mobiles when it is not signed. When I sign the application, it works perfectly on the same devices that previously made the application crashes.
The error is:
Process: com.my.application, PID: 10293 java.lang.RuntimeException: Unable to instantiate application com.my.application.di.base.App: java.lang.ClassNotFoundException: Didn't find class "com.my.application.di.base.App" on path: DexPathList[[zip file "/data/app/com.my.application-1/base.apk"],nativeLibraryDirectories=[/data/app/com.my.application-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:563)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4526)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
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:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.my.application.di.base.App" on path: DexPathList[[zip file "/data/app/com.my.application-1/base.apk"],nativeLibraryDirectories=[/data/app/com.my.application-1/lib/arm, /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.newApplication(Instrumentation.java:980)
at android.app.LoadedApk.makeApplication(LoadedApk.java:558)
... 10 more
Suppressed: java.lang.ClassNotFoundException: com.my.application.di.base.App
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
I'm not obfuscating my code, nor use instant run. I'm using multidex.

For creating debug apk create it from Build>Build APK. The issue you are facing is because of instant run.

Do you use proguard or any other method to obfuscate your code?

I think you should use multidex

java.lang.ClassNotFoundException: Didn't find class ".MyApplication" on path: DexPathList[[zip file "/data/app/com.sampledemo.box8demo-1/base.apk"]

I have been trying to solve below issue from 3 days.
Problem : Created new module as a library in android project and created aar file using assembleDebug.
That aar file i have added in another project as a new module ( dependecies also added ) but after installing the app into the device i am getting below error :
6055-26055/com.sampledemo.box8demo E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.sampledemo.box8demo, PID: 26055
java.lang.RuntimeException: Unable to instantiate application com.NerdNow.NerdNowApplication: java.lang.ClassNotFoundException: Didn't find class "com.NerdNow.NerdNowApplication" on path: DexPathList[[zip file "/data/app/com.sampledemo.box8demo-1/base.apk"],nativeLibraryDirectories=[/data/app/com.sampledemo.box8demo-1/lib/arm64, /vendor/lib64, /system/lib64]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:580)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4699)
at android.app.ActivityThread.access$1600(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1412)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.NerdNow.NerdNowApplication" on path: DexPathList[[zip file "/data/app/com.sampledemo.box8demo-1/base.apk"],nativeLibraryDirectories=[/data/app/com.sampledemo.box8demo-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 android.app.Instrumentation.newApplication(Instrumentation.java:982)
at android.app.LoadedApk.makeApplication(LoadedApk.java:575)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4699)
at android.app.ActivityThread.access$1600(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1412)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)
Suppressed: java.lang.NoClassDefFoundError: com.NerdNow.NerdNowApplication
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:226)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
at dalvik.system.DexPathList.findClass(DexPathList.java:338)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
... 13 more
Suppressed: java.lang.ClassNotFoundException: com.NerdNow.NerdNowApplication
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)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
I have enabled multidex in gradle file as well as extended MultiDexApplication in Application class
Also added multidex dependecy in gradle file
please help me to resolve this issue.

Ok Guys, after many try i found that you can not add dependencies on aar files. you have to include jar for each dependencies.

APK doesn't work on phone but App works normal in Android Studio

I have an App that works without problems in Android Studio, but when I Build the apk and then install it shows stranges behaviors:
1- When App is installing, phone shows me notification that no one permission is necessary for my app (and that is not true, my app works with awareness)
2- After installation, and running, the App crushed, no one screen is showed.
I was thinking that maybe could be a problem with manifest, but as I said in emulator works without problem. First time I see this behavoir. Any idea how to solve it ??
03-28 13:15:22.851 7334-7334/com.itelma.tele D/AndroidRuntime: Shutting down VM
03-28 13:15:22.851 7334-7334/com.itelma.tele E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.itelma.tele, PID: 7334
java.lang.RuntimeException: Unable to instantiate service com.itelma.tele.API_AC.FCMInstanceIdService: java.lang.ClassNotFoundException: Didn't find class "com.itelma.tele.API_AC.FCMInstanceIdService" on path: DexPathList[[zip file "/data/app/com.itelma.tele-2/base.apk"],nativeLibraryDirectories=[/data/app/com.itelma.tele-2/lib/arm, /data/app/com.itelma.tele-2/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3841)
at android.app.ActivityThread.access$2100(ActivityThread.java:229)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1909)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7325)
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.ClassNotFoundException: Didn't find class "com.itelma.tele.API_AC.FCMInstanceIdService" on path: DexPathList[[zip file "/data/app/com.itelma.tele-2/base.apk"],nativeLibraryDirectories=[/data/app/com.itelma.tele-2/lib/arm, /data/app/com.itelma.tele-2/base.apk!/lib/armeabi-v7a, /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.ActivityThread.handleCreateService(ActivityThread.java:3838)
at android.app.ActivityThread.access$2100(ActivityThread.java:229) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1909) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:7325) 
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) 
Suppressed: java.lang.ClassNotFoundException: com.itelma.tele.API_AC.FCMInstanceIdService
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)
... 10 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

Firebase Robo Test : doesn't recognize all project file

Hello everyone I am new with using firebase lab test , I am trying to do Robo Test ,
I already upload apk , but it keep crashing the error it gives me that it didn't recgnize APP file in the project , I already test my app on 3 different physical devices with different API and companies (HTC , Samsung ) .. and it works fine
and here is a full Test issues .
FATAL EXCEPTION: main
Process: com.example.mol.saherproject, PID: 8122
java.lang.RuntimeException: Unable to instantiate application com.example.mol.saherproject.settings.APP: java.lang.ClassNotFoundException: Didn't find class "com.example.mol.saherproject.settings.APP" on path: DexPathList[[zip file "/data/app/com.example.mol.saherproject-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.mol.saherproject-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:578)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4680)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.mol.saherproject.settings.APP" on path: DexPathList[[zip file "/data/app/com.example.mol.saherproject-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.mol.saherproject-1/lib/arm, /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.newApplication(Instrumentation.java:981)
at android.app.LoadedApk.makeApplication(LoadedApk.java:573)
... 9 more
Suppressed: java.lang.ClassNotFoundException: com.example.mol.saherproject.settings.APP
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)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
any help please ...