Can't install app on Device 3.1.2

Question

Hi, I can install my app with the profile in my IOS4.0 device, but the same profile can't used to install on IOS 3.1.2 device. My Xcode is SDK 3.2.3+IOS4(SDK 4).

BTW, i set my "Base SDK" = iPhone Device 4.0, "IPhone OS Deployment Target" is "iPhone OS 3.1.2". The error info is "A valid provisioning profile for this executable was not found."

Thanks a lot.

Answer 1

Are you a member of the iOS Developer Program? You are not able to test on device until you sign up.