问题
I download one example from this link. Currently I am using xcode 4.2. It shows AFNetworkReachabilityStatus as undeclared variable. Please give any link to learn AFNetworking.
回答1:
There are different versions of AFNetworking.
Latest AFNetworking 2.0 and higher requires Xcode 5, targeting either iOS 6.0 and above, or Mac OS 10.8 Mountain Lion (64-bit with modern Cocoa runtime) and above.
For compatibility with iOS 5 or Mac OS X 10.7, use the 1.x release.
For compatibility with iOS 4.3 or Mac OS X 10.6, use the 0.10.x release.
Now if you want to support ios 4.3 or greater use 0.10 release.
AFNetworking Doc
来源：https://stackoverflow.com/questions/19517002/can-any-one-please-tell-about-the-use-of-afnetworking-then-it-support-all-xcod