问题设置基本sdk为4.0，操作系统部署目标为3.1.3（使用MapKit）

I'm building an application that uses MapKit functionality. The base sdk is 4.0 but I'm building to a 3.1.3 device (the OS Deployment Target is set to 3.1.3). After the app is installed and right when it begins to run, I run into the following error:I'm building an application that uses MapKit fu