what does exception java.lang.IllegalArgumentException: Requested window android.os.BinderProxy@4205eb18 does not exist mean

Question

I am trying to login into the app but after the login is success and it is about to go to next screen, it restarts. Following is the exception that I guess would have caused this, as there is no other exception.

11-14 15:09:54.841: W/WindowManager(643): Failed looking up window
11-14 15:09:54.841: W/WindowManager(643): java.lang.IllegalArgumentException: Requested window android.os.BinderProxy@4205eb18 does not exist
11-14 15:09:54.841: W/WindowManager(643):   at com.android.server.wm.WindowManagerService.windowForClientLocked(WindowManagerService.java:7622)
11-14 15:09:54.841: W/WindowManager(643):   at com.android.server.wm.WindowManagerService.windowForClientLocked(WindowManagerService.java:7613)
11-14 15:09:54.841: W/WindowManager(643):   at com.android.server.wm.WindowState$DeathRecipient.binderDied(WindowState.java:1591)
11-14 15:09:54.841: W/WindowManager(643):   at android.os.BinderProxy.sendDeathNotice(Binder.java:417)
11-14 15:09:54.841: W/WindowManager(643):   at dalvik.system.NativeStart.run(Native Method)
11-14 15:09:54.841: I/WindowManager(643): WIN DEATH: null

Can anyone tell, what does it mean and if possible how to correct it.

Tallboy

In what application you trying to log in? – Pelagianism

Is this the only exception logged? It shows one of the components dying, causing binder exception on the client side. I'd look for another exception in the logs. – Cackle

what does that mean? where ca n I find the documentation for this exception. – Tallboy

You should not care, you should rather grep the logs for other exceptions. This particular exception means nothing more than crash of one components communicating via Binder IPC. If you really want to know about binder: nds.rub.de/media/attachments/files/2012/03/binder.pdf – Cackle

please show the piece of code that causing this exception? – Korman

#10219646 – Kowalewski

@ code Painters... So you mean that this exception has occured after some other exception has already occured,..? – Tallboy

Yes. You got an exception which crashed the application/caused win death. – Lamprey

can someone tell what does this exception mean..? – Flea

Answer 1

This may be caused by calling a system API that is not available on your target device. I ran into this issue then trying to call ActivityManager.MemoryInfo.totalMem on a 4.0.x device. I didn't get any compile errors as I was targeting 4.2.2 and ActivityManager.MemoryInfo.totalMem was added in API16 (4.1)

Mainland

Thanks for the idea! In my case it was view.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); on a device that doesn't support it (Casio C811 4G). view.isHapticFeedbackEnabled() helped. – Unipolar