At first install the app crashes, but after reinstall it works - android

I have never met so strange issue so far.
The app compiles fine. But at first run it crashes on the test device, but if the project is cleaned and re-run the app works fine.
If I try to install the apk the result is the same: installing the app crashes but after reinstalling it runs fine.
The issue is happening on all of my test devices and under Eclipss and Android Studio. I spent many hours to find a similar case but no avail.
The previous version of the app worked fine, but if I revert the files to an earlier version the issue remains.
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.plexnor.android.good.ViewfinderView" on path: DexPathList[[zip file "/data/app/com.plexnor.android.good-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.plexnor.android.good-1, /vendor/lib, /system/lib]]
My guess something went wrong with project set up but could not find the culprit. Deleting the bin folder, making countless project cleaning and restarts did not lead anywhere ...
The full stack trace:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.plexnor.android.good/com.plexnor.android.good.CaptureActivity}: android.view.InflateException: Binary XML file line #17: Error inflating class com.plexnor.android.good.ViewfinderView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2425)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2483)
at android.app.ActivityThread.access$900(ActivityThread.java:171)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1297)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5506)
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:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #17: Error inflating class com.plexnor.android.good.ViewfinderView
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.inflate(LayoutInflater.java:463)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:359)
at android.app.Activity.setContentView(Activity.java:2010)
at com.plexnor.android.good.CaptureActivity.onCreate(SourceFile:317)
at android.app.Activity.performCreate(Activity.java:5426)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389)
... 11 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.plexnor.android.good.ViewfinderView" on path: DexPathList[[zip file "/data/app/com.plexnor.android.good-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.plexnor.android.good-1, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.view.LayoutInflater.createView(LayoutInflater.java:565)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
... 22 more
android.view.InflateException: Binary XML file line #17: Error inflating class com.plexnor.android.good.ViewfinderView
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.inflate(LayoutInflater.java:463)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:359)
at android.app.Activity.setContentView(Activity.java:2010)
at com.plexnor.android.good.CaptureActivity.onCreate(SourceFile:317)
at android.app.Activity.performCreate(Activity.java:5426)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2483)
at android.app.ActivityThread.access$900(ActivityThread.java:171)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1297)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5506)
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:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.plexnor.android.good.ViewfinderView" on path: DexPathList[[zip file "/data/app/com.plexnor.android.good-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.plexnor.android.good-1, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.view.LayoutInflater.createView(LayoutInflater.java:565)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
... 22 more
java.lang.ClassNotFoundException: Didn't find class "com.plexnor.android.good.ViewfinderView" on path: DexPathList[[zip file "/data/app/com.plexnor.android.good-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.plexnor.android.good-1, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.view.LayoutInflater.createView(LayoutInflater.java:565)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:769)
at android.view.LayoutInflater.inflate(LayoutInflater.java:463)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:359)
at android.app.Activity.setContentView(Activity.java:2010)
at com.plexnor.android.good.CaptureActivity.onCreate(SourceFile:317)
at android.app.Activity.performCreate(Activity.java:5426)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2483)
at android.app.ActivityThread.access$900(ActivityThread.java:171)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1297)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5506)
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:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)
EDIT 1:
The app crashes earlier even entering the main activity when processing the layout.
The beginning of the layout:
<?xml version="1.0" encoding="UTF-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android" >
<SurfaceView
android:id="#+id/preview_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
<RelativeLayout
android:id="#+id/relative_layout_main"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="0dp"
android:layout_marginTop="0dp" >
<RelativeLayout
android:id="#+id/learning_swipe_relative_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentBottom="true"
android:background="#android:color/transparent" >
<ImageView
android:id="#+id/learningSwipe"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:padding="30dp"
android:src="#drawable/swipe" />
</RelativeLayout>
<com.plexnor.android.good.ViewfinderView
android:id="#+id/viewfinder_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<RelativeLayout
android:id="#+id/learning_relative_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#android:color/transparent" >

Whats your logcat throws
Caused by: java.lang.ClassNotFoundException: Didn't find class
"com.plexnor.android.good.ViewfinderView"
ClassNotFoundException in Java is a subclass of java.lang.Exception and Comes when Java Virtual Machine tries to load a particular class and doesn't found the requested class in classpath.
Another important point about this Exception is that, It is a checked Exception and you need to provide explicitly Exception handling while using methods which can possibly throw classnotfoundexception in java either by using try-catch block or by using throws clause.
Solution
Check whether your classpath contains that jar, if your classpath
doesn't contain the jar then just add that class in your classpath.

Because I could not solve the issue I suspended that project for some months. Using Eclipse in my another project the same issue emerged after including a third party SDK to the project.
Cleaning project, changing things in build path did not help. So, I cloned the project to a new workspace and added the SDK ... and it worked that way. After trying out the old abandoned project it worked out of the box. Thus I think the issue caused by a bug in the development environment.

Related

com.iceteck.silicompressorr.provider.GenericFileProvider doesn't found and crash app

When I install app on the device with the android 4.4 app crashed and I get this error in the logcat.
But app installs and correctly work on the above android.
How can I fix this error
I also add the below code on the manifiests.xml and didn't get any result
<provider
android:name="com.iceteck.silicompressorr.provider.GenericFileProvider"
android:authorities="${applicationId}.silli.provider"
android:exported="false"
android:grantUriPermissions="true"
tools:replace="android:authorities">
Error:
java.lang.RuntimeException: Unable to get provider com.iceteck.silicompressorr.provider.GenericFileProvider: java.lang.ClassNotFoundException: Didn't find class "com.iceteck.silicompressorr.provider.GenericFileProvider" on path: DexPathList[[zip file "/data/app/ir.mspars.azmoun-9.apk"],nativeLibraryDirectories=[/data/app-lib/ir.mspars.azmoun-9, /vendor/lib, /system/lib]]
at android.app.ActivityThread.installProvider(ActivityThread.java:5131)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4722)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4605)
at android.app.ActivityThread.access$1600(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5511)
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:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.iceteck.silicompressorr.provider.GenericFileProvider" on path: DexPathList[[zip file "/data/app/ir.mspars.azmoun-9.apk"],nativeLibraryDirectories=[/data/app-lib/ir.mspars.azmoun-9, /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.ActivityThread.installProvider(ActivityThread.java:5116)
you may have not selected the lowest Android version when you are creating a new project.
if this is the problem try this
https://www.youtube.com/watch?v=D5lRTCaqhII&ab_channel=CodeDocu_com

AndroidRuntime: FatalException:

I really don't know what's happening. On Android Studio every thing is working fine, but when I try to run the app on my phone it gives this error.
AndroidRuntime: FatalException:
Process: com.example.vb.textreader, PID: 29524
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.vb.textreader/com.example.vb.textreader.ocrcapture}: android.view.InflateException: Binary XML file line #10: Error inflating class com.example.vb.textreader.CameraSourcePreview
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2394)
at android.app.ActivityThread.access$800(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5276)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class com.example.vb.textreader.CameraSourcePreview
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:761)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:508)
at android.view.LayoutInflater.inflate(LayoutInflater.java:418)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.vb.textreader.ocrcapture.onCreate(ocrcapture.java:67)
at android.app.Activity.performCreate(Activity.java:6041)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1109)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2285)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2394)
at android.app.ActivityThread.access$800(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5276)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.vb.textreader.CameraSourcePreview" on path: DexPathList[[zip file "/data/app/com.example.vb.textreader-1/base.apk"],nativeLibraryDirectories=[/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.view.LayoutInflater.createView(LayoutInflater.java:575)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:747)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:508)
at android.view.LayoutInflater.inflate(LayoutInflater.java:418)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.vb.textreader.ocrcapture.onCreate(ocrcapture.java:67)
at android.app.Activity.performCreate(Activity.java:6041)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1109)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2285)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2394)
at android.app.ActivityThread.access$800(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5276)
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:908)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
Suppressed: java.lang.ClassNotFoundException: Didn't find class "com.example.vb.textreader.CameraSourcePreview" on path: DexPathList[[dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-support-annotations-23.4.0_932ddf769cdf6f7ff910db3bda1b13074bfa8aca-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_9-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_8-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_7-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_6-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_5-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_4-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_3-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_2-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_1-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-slice_0-classes.dex", dex file "/data/data/com.example.vb.textreader/files/instant-run/dex/slice-internal_impl-23.4.0_ed28e3a48cbb17d2b91d4065fb1975ae0dafdc68-classes.dex", dex file "/data/data/com.example.vb.textreader/fil
I am trying to create an OCR app on android. There is no error in the code as viewed in Android Studio. Any help is greatly appreciated.
XML Code
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/topLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:keepScreenOn="true">
<com.example.vb.textreader.proprietary.CameraSourcePreview
android:id="#+id/preview"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.vb.textreader.GraphicOverlay
android:id="#+id/graphicOverlay"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</com.example.vb.textreader.proprietary.CameraSourcePreview>
It seems that there is a custom view com.example.vb.textreader.CameraSourcePreview that's used in a XML layout file that's causing the problem.
Check it's attributes and implementation. if it depends on a library, check the dependencies in build.gradle.
It seems you are trying to use com.example.vb.textreader.CameraSourcePreview which must be a custom view you implemented. One thing that comes to my mind is to check to see if the custom view resides exactly at that location.
I'm not sure whether the provided solution is related to your issue but
try tocompile 'com.android.support:design:*****' instead of com.android.support:appcompat-v7:*****

Android Telegram app crash on specific devices

I have integrated Telegram in one of my apps.
Its working fine on many devices and Android version, but crashing on Android 4.4, Samsung Galaxy S3.
The error log that I am getting is:
org/telegram/SQLite/SQLitePreparedStatement
java.lang.Runtime.nativeLoad(Native Method)
java.lang.Runtime.doLoad(Runtime.java:421)
java.lang.Runtime.loadLibrary(Runtime.java:362)
java.lang.System.loadLibrary(System.java:526)
org.telegram.android.NativeLoader.initNativeLibs(NativeLoader.java:196)
org.telegram.messenger.ApplicationLoader.onCreate(ApplicationLoader.java:188)
android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1007)
android.app.ActivityThread.handleBindApplication(ActivityThread.java:4368)
android.app.ActivityThread.access$1500(ActivityThread.java:138)
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1296)
android.os.Handler.dispatchMessage(Handler.java:102)
android.os.Looper.loop(Looper.java:149)
android.app.ActivityThread.main(ActivityThread.java:5045)
java.lang.reflect.Method.invokeNative(Native Method)
java.lang.reflect.Method.invoke(Method.java:515)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:610)
dalvik.system.NativeStart.main(Native Method)
Caused by:
java.lang.ClassNotFoundException: Didn't find class "org.telegram.SQLite.SQLitePreparedStatement" on path: DexPathList[[zip file "/system/framework/com.google.android.maps.jar", zip file "/data/app/com.bcd.app-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.bcd.app-1, /vendor/lib, /system/lib, /system/lib/arm]]
dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
java.lang.ClassLoader.loadClass(ClassLoader.java:497)
java.lang.ClassLoader.loadClass(ClassLoader.java:457)
java.lang.Runtime.nativeLoad(Native Method)
java.lang.Runtime.doLoad(Runtime.java:421)
java.lang.Runtime.loadLibrary(Runtime.java:362)
java.lang.System.loadLibrary(System.java:526)
org.telegram.android.NativeLoader.initNativeLibs(NativeLoader.java:196)
Any help ?
Before all, as the above error seems, there's naming problem in the native source code and maybe it emanates from changing in package name of the project.
You should change package name in all native source code and then rebuild it.
Replace in path the two followings cases in jni folder:
Java_org_telegram_
org/telegram/
with the style of naming your packages, like the examples below:
Java_org_telegram_example_
org/telegram/example/
In the above example, the package name is:
org.telegram.example.messenger

java.lang.RuntimeException: Unable to instantiate application

In Google Play Developer Console I see this crash:
java.lang.RuntimeException: Unable to instantiate application com.example.MyApp: java.lang.ClassNotFoundException: Didn't find class "com.example.MyApp" on path: DexPathList[[zip file "/mnt/asec/com.example.testapp-1/pkg.apk"],nativeLibraryDirectories=[/mnt/asec/com.example.testapp-1/lib, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:516)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4545)
at android.app.ActivityThread.access$1500(ActivityThread.java:160)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1390)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5330)
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:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.MyApp" on path: DexPathList[[zip file "/mnt/asec/com.example.testapp-1/pkg.apk"],nativeLibraryDirectories=[/mnt/asec/com.example.testapp-1/lib, /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:511)
... 11 more
Suppressed: java.io.IOException: unable to open DEX file
at dalvik.system.DexFile.openDexFileNative(Native Method)
at dalvik.system.DexFile.openDexFile(DexFile.java:296)
at dalvik.system.DexFile.<init>(DexFile.java:80)
at dalvik.system.DexFile.<init>(DexFile.java:59)
at dalvik.system.DexPathList.loadDexFile(DexPathList.java:263)
at dalvik.system.DexPathList.makeDexElements(DexPathList.java:230)
at dalvik.system.DexPathList.<init>(DexPathList.java:112)
at dalvik.system.BaseDexClassLoader.<init>(BaseDexClassLoader.java:48)
at dalvik.system.PathClassLoader.<init>(PathClassLoader.java:65)
at android.app.ApplicationLoaders.getClassLoader(ApplicationLoaders.java:57)
at android.app.LoadedApk.getClassLoader(LoadedApk.java:326)
at android.app.LoadedApk.makeApplication(LoadedApk.java:508)
... 11 more
This crash occurs mostly on Android versions 4.4 and 4.2.
This answer suggests that this crash occurs when the apk is updated by dalvik. It seems to be a low-priority Android bug.
Are there any workarounds for this?
Does it help to set
<application
android:allowBackup="false"
in Manifest.xml?
(Maybe the backup of application is stored on SD-card, which is causing the problem on apk update).
This error usually occurs when you declare a class extending Application (android.app.Application) and then user android:name="thatClassName"
But if your App can't access it class fully. This error can occur
Try Making the class public only
It will make the application user that class globally

Android Studio - Unable to resolve class L after upgrade

I've recently upgraded my tools and build.gradle to version 21 in Android Studio.
My apk now crashes on load and I get the following error:
Unable to resolve superclass of Lcom/mypackage/MyClass;
Link of class 'Lcom/mypackage/MyClass
Is anyone experiencing similar issues?
I've tried the following but no success:
Cleaning the project
Restarting android studio
Re-importing the project
More log details:
java.lang.RuntimeException: Unable to instantiate application com.mypackage.MyClass:
java.lang.ClassNotFoundException: Didn't find class "com.mypackage.MyClass" on path:
DexPathList[[zip file "/data/app/com.mypackage-1.apk"],nativeLibraryDirectories=[/data/app-
lib/com.mypackage-1, /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.mypackage.MyClass" on path:
DexPathList[[zip file "/data/app/com.mypackage-1.apk"],nativeLibraryDirectories=[/data/app-
lib/com.mypackage-1, /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)
            
I later found out that this was an issue relating to multi dexing.
I needed to run a script to generate the names of the files for my main-dex-list
The blog post below has a detailed outline of this: http://blog.osom.info/2014/10/generating-main-dex-list-file.html

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