I'm using Android studio 3.0 beta 9 to build apk. But recently I encountered that when I run the apk via adb install either on emulator or on real device, it pops ClassNotFoundException, Application Class not found in dexPathList.....
But when I run via Android Studio, it's working fine. Any idea what is the cause?
Here is the error log:-
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.demo, PID: 27637
java.lang.RuntimeException: Unable to instantiate application
com.example.demo.MyApplication:java.lang.ClassNotFoundException: Didn't find class "com.example.demo.MyApplication" on path: DexPathList[[zip file "/data/app/com.example.demo-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.demo-1/lib/arm, /data/app/com.example.demo-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:680)
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:1898)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7402)
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.example.demo.MyApplication" on path: DexPathList[[zip file "/data/app/com.example.demo-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.demo-1/lib/arm, /data/app/com.example.demo-1/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.Instrumentation.newApplication(Instrumentation.java:1005)
at android.app.LoadedApk.makeApplication(LoadedApk.java:670)
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:1898)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:7402)
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.example.demo.MyApplication
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 finally got the answer, there are two problem, first one is mentioned here, where I was trying to adb install on apk which was built by Android Studio when I was directly running the app on android device.
Second problem is mentioned here
So when I try to build apk via build gradle task, then it was showing error :-
Error:Failed to complete Gradle execution.
Cause:
The version of Gradle you are using (3.3) does not support the forTasks() method on BuildActionExecuter. Support for this is available in Gradle 3.5 and all later versions.
Hence I upgraded the Gradle version to latest once and problem resolved.