读取.xlsx文件时出现validation错误

我正在使用Apache POI读取和写入Excel格式文件的Android应用程序，而阅读.xlsx文件，我得到以下exception。 我想弄清楚，但找不到解决问题的办法，如果有人知道解决scheme，请帮助我。 这是logcat错误：

07-08 18:22:07.350: E/AndroidRuntime(4549): FATAL EXCEPTION: main 07-08 18:22:07.350: E/AndroidRuntime(4549): java.lang.VerifyError: org/apache/poi/xssf/usermodel/XSSFWorkbook 07-08 18:22:07.350: E/AndroidRuntime(4549): at com.example.exc2phconverter.Homepage.onActivityResult(Homepage.java:345) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.Activity.dispatchActivityResult(Activity.java:5390) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.ActivityThread.deliverResults(ActivityThread.java:3178) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3225) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.ActivityThread.access$1100(ActivityThread.java:140) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1275) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.os.Handler.dispatchMessage(Handler.java:99) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.os.Looper.loop(Looper.java:137) 07-08 18:22:07.350: E/AndroidRuntime(4549): at android.app.ActivityThread.main(ActivityThread.java:4898) 07-08 18:22:07.350: E/AndroidRuntime(4549): at java.lang.reflect.Method.invokeNative(Native Method) 07-08 18:22:07.350: E/AndroidRuntime(4549): at java.lang.reflect.Method.invoke(Method.java:511) 07-08 18:22:07.350: E/AndroidRuntime(4549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006) 07-08 18:22:07.350: E/AndroidRuntime(4549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773) 07-08 18:22:07.350: E/AndroidRuntime(4549): at dalvik.system.NativeStart.main(Native Method)