I just got this error recently, and my app also prefers external
installation. I haven't been able to reproduce the error either.
On 2 Jan, 16:09, Matteo Vega vegao...@gmail.com wrote:
Hi,
I have an application that's on Android Market with 10,000 users. Every
once in while (once or twice a week), I am getting a ClassNotFoundException
on the Market Developer Console for my main activity:
java.lang.RuntimeException: Unable to instantiate activity
ComponentInfo{com.mycompany.myapp/com.mycompany.myapp.MainActivity}:
java.lang.ClassNotFoundException: com.mycompany.myapp.MainActivity in loader
dalvik.system.PathClassLoader[/mnt/asec/com.mycompany.myapp-1/pkg.apk]
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2757)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2866)
at android.app.ActivityThread.access$2300(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2181)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:5097)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException:
com.mycompany.myapp.MainActivity in loader
dalvik.system.PathClassLoader[/mnt/asec/com.mycompany.myapp-1/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
at android.app.Instrumentation.newActivity(Instrumentation.java:1034)
at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2749)
... 11 more
Note that this application is in production and used by 10,000 people and
MainActivity is the very first activity during startup. This error happens
very rarely, but yet it happens. I couldn't reproduce it on my developer
phone nor the emulator, so I ended up adding a default application that's
extended from Application and called before my main activity, but this time
I got the same exception for my Application class:
java.lang.RuntimeException: Unable to instantiate application
com.mycompany.myapp.App: java.lang.ClassNotFoundException:
com.mycompany.myapp.App in loader
dalvik.system.PathClassLoader[/mnt/asec/com.mycompany.myapp-1/pkg.apk]
at
android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:649)
at
android.app.ActivityThread.handleBindApplication(ActivityThread.java:4232)
at android.app.ActivityThread.access$3000(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2071)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:876)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:634)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.mycompany.myapp.App in
loader
dalvik.system.PathClassLoader[/mnt/asec/com.mycompany.myapp-1/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
at android.app.Instrumentation.newApplication(Instrumentation.java:942)
at
android.app.ActivityThread$PackageInfo.makeApplication(ActivityThread.java:644)
... 11 more
This application is installed to SD Card by default and my guess is that it
might be SD Card related, so I tried to mount/unmount my SD Card to
reproduce it and still no luck. I am really puzzled at this point and trying
to find out if anyone has suggestions. ClassNotFoundException is thrown when
the app package does not contain a required class, but that's not the case
for my app. Please help :)
Thank you,
-Vega
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