Android application with usb host shield 2.0 and arduino problem

Using Arduino Networking, Protocols, and Devices
1

I try test Usb host shield 2.0+Arduino duemilanove with example ArduinoBlinkLED sketch from Usb host shield 2.0 Library.I upload it in my arduino board and after upload to my android cell phone(4.0.4) this application Android ADK: How To Blink an LED Code and Explanation I upload the application to my phone but when push button for on led ...stop and exit.Any help for this?I use external power supply.Thanks.