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