compiles on simulator but not on device?

[blackknight467]

I was recently given a project that hasn't been worked on since ios 2.2. When i run the app in the 3.2 simulator, everything works perfectly fine. when i try and run the app on a 3.2 device, compile errors in the apple libraries occur like dispatch.h not being found and what not. when i switch the base OS to 4.0 an entirely different set of compile time errors occur. I have no idea where to even begin looking for the error or how to fix it. any advice?

Thanks.

[kelvinkao]

Can't tell you anything until you post those compilation errors and warnings.