Missing API on Android device ?

Dear sirs,

I am getting the following error, when running my app on a Android device, but this erros down not happen when running on simulator, iPad or iPhone.

Erros message: “I/Corona ( 3492): Lua Runtime Error: lua_pcall failed with status: 2, error message is: ?:0: attempt to call method ‘insert’ (a nil value)”

I am using system.pathForFile( …, system.ResourceDirectory ) to dynamic load files of following extensions: png, aac, txt.

Do you think it could be the problem?

I so, is there a documented workaround ?

Thank you,
Marcos Tito.
[import]uid: 62613 topic_id: 31085 reply_id: 331085[/import]