在PopupWindow 里面 添加VideoView组件

在popupWindow里面添加VideoView 遇到这个问题。06-15 10:13:21.647: WARN/WindowManager(1373): Failed looking up window
06-15 10:13:21.647: WARN/WindowManager(1373): java.lang.IllegalArgumentException: Requested window android.os.BinderProxy@40b32820 does not exist
06-15 10:13:21.647: WARN/WindowManager(1373):     at com.android.server.WindowManagerService.windowForClientLocked(WindowManagerService.java:8415)
06-15 10:13:21.647: WARN/WindowManager(1373):     at com.android.server.WindowManagerService.windowForClientLocked(WindowManagerService.java:8406)
06-15 10:13:21.647: WARN/WindowManager(1373):     at com.android.server.WindowManagerService.finishDrawingWindow(WindowManagerService.java:2585)
06-15 10:13:21.647: WARN/WindowManager(1373):     at com.android.server.WindowManagerService$Session.finishDrawing(WindowManagerService.java:5923)
06-15 10:13:21.647: WARN/WindowManager(1373):     at android.view.IWindowSession$Stub.onTransact(IWindowSession.java:258)
06-15 10:13:21.647: WARN/WindowManager(1373):     at com.android.server.WindowManagerService$Session.onTransact(WindowManagerService.java:5853)
06-15 10:13:21.647: WARN/WindowManager(1373):     at android.os.Binder.execTransact(Binder.java:336)
06-15 10:13:21.647: WARN/WindowManager(1373):     at dalvik.system.NativeStart.run(Native Method)
不清楚是什么问题，但是视频可以在这上面播发，有声音，没有图像。。还有以上的警告。。求指点。