Old projects are not running in new iPhone SDK 4.0

Question

I have a UICatlog project downloaded from apple development library. It was running fine with 3.0 Base SDK, but when I upgrade xCode SDK Version 3.2.3. I am getting an error:

error: There is no SDK with the name or path 'iphoneos3.0'

What do I do?

Answer 1

将项目信息中的基本SDK设置更改为iPhone Device 4.0。

Answer 2

Check that you aren't changing the Base SDK for the project and not the current target. The current target base SDK setting will override the project settings. Also, if you wan't to support older platform versions, make sure you set Deployment target appropriately.