本篇是直接拷贝别人的博文，地址：http://blog.csdn.net/liyiyismile/article/details/50434844

在项目开发中导入第三方sdk后会提示很多这样的错误：

在导入AF和友盟等第三方sdk时出现 was built for newer is version () then being is linked () 的警告

As a temporary workaround, to suppress extensive warnings, the -w flag can be added to Build Settings -> Other Linker Flags:

1.Select your Project
2.Select your Target
3.Select “Build Settings” tab
4.Scroll down to “Linking”
5.Edit “Other Linker Flags” and add “-w”

如图：

command +B 消除警告。

iOS开发之XCode设置--消除AFN的警告