I get the error "Error: 0x20 Unspecified general OS-related error"

I developed an application about BT send file.It could be debuged and run successed in WINCSW simulation.But in my N73 phone,it report the Symstem error (-1).I can't launch it.

I debuged it by ODD, get the information :
Error: 0x20 Unspecified general OS-related error.

Any help will be welcomed.

i have this error when i have not on "use sis installation process" in target settings. try to switch it on.