这个例外可能是什么原因？java.lang.RuntimeException:未初始化InputChannel

我正在开发一个Android应用程序.有时我会遇到以下应用程序崩溃.我不知道为什么.谁能帮我这个？

java.lang.RuntimeException: InputChannel is not initialized.
at android.view.InputEventReceiver.nativeInit(Native Method)
at android.view.InputEventReceiver.(InputEventReceiver.java:70)
at android.view.ViewRootImpl$WindowInputEventReceiver.(ViewRootImpl.java:5589)
at android.view.ViewRootImpl.setView(ViewRootImpl.java:579)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:259)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2833)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2231)
at android.app.ActivityThread.access$700(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4998)
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:777)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
at dalvik.system.NativeStart.main(Native Method)

感谢你的帮助.:)

这是一个已知的bug,请看这里:

https://code.google.com/p/android/issues/detail?id=108859