[Simple-support] simple not working on android device

[<da...@al...>]

Hi all,I'm using Simple 2.6.1 on an Android project for serialize some complex xml files. I use Eclipse and followed the procedure described on the project site (Simple XML in Android 1.5 and Up):
1) created the "libs" folder on the project root2) put simple-xml-2.6.1.jar in the "libs" folder3) added the jar to the build path4) selected for export on the build path
All works fine when I run the application on the android emulator. But when I install the application on the device I get a crash at the time of serialization.
What's wrong?
P.S. I'm developing with android api level 8 (android 2.2)