XCode 4和iOS 4.2.1 [英] XCode 4 and iOS 4.2.1

问题描述

我已经安装了XCode4，我需要为iOS 4.2.1构建是否有可能安装旧固件4.2.1并针对它进行构建？

I've installed XCode4 and I need to build for iOS 4.2.1 is there a possibility to install the "old" firmware 4.2.1 and build against it?

推荐答案

据我所知，你只能使用4.3 Base SDK，但也可以针对4.2.1之类的旧操作系统或其他任何东西。因此无需安装旧固件。

As far as I understand it you can only use a 4.3 Base SDK but can target also older OSes like 4.2.1 or whatever. So no need to install old firmwares.

实际上，任何其他方式都没有意义。我有一个较旧的iPod Touch，只能升级到4.2.1，因此必须使用相同的工具集对4.2.1进行编程。

Actually it wouldn't make sense any other way. I have a older iPod Touch which can only be upgraded to 4.2.1, so it has to be programmed targeted for 4.2.1 using the same toolset.

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