xcode : How do I make sure the deployment target of my binary is set at 3.0?

How do I make sure the deployment target of my binary is set at 3.0? My base SDK is 4.0 because I'm using xcode 3.2.4 and this is the only SDK I can use. I thought it was possible to get the binary to target 3.0 using the settings in th开发者_如何学编程e Build properties but when I upload the binary to iTunes Connect it still says the minimum os is 4.0.

What you are doing is basically right however there is more than one target. When you go to the menu->project-> there are 3 target options, one of the is "active" target, I know it seems the same as changing the configuration, but it's not. Try changing also the "active" one, this should fix the problem.