最低操作系统版本不正确

Question

I've got my deployment target set to iOS 4.0 and yet when it's all compile the value is 3.1. WTF?

Anyone know what's going on here?

Answer 1

Settings like this can be set in multiple places. Check that your target setting is correct: it'll override the project setting.

Answer 2

Application settings can be set on the project (typically the blue icon at the top of your Xcode drawer) but also can be overridden in individual application Targets (the little red bullseye icon). Settings applied to the project are kind of like global settings. You can change the global settings in different targets though. So check that you're not setting 3.1 in a target thus overriding your Project settings which you have set to 4.0.