Apple的Reachability文件中存在奇怪的错误

问题描述

我正在尝试在项目中使用可达性。我添加了Reachability.h和Reachability.m文件。但是在构建项目之后，xCode显示了奇怪的错误：

I'm trying to work with reachability in my project. I added Reachability.h and Reachability.m files. But after building project xCode shows me strange errors:

Undefined symbols for architecture i386:
"_SCNetworkReachabilityCreateWithName", referenced from:
  +[Reachability reachabilityWithHostname:] in Reachability.o
"_SCNetworkReachabilityCreateWithAddress", referenced from:
  +[Reachability reachabilityWithAddress:] in Reachability.o
"_SCNetworkReachabilitySetCallback", referenced from:
  -[Reachability startNotifier] in Reachability.o
  -[Reachability stopNotifier] in Reachability.o
"_SCError", referenced from:
  -[Reachability startNotifier] in Reachability.o
"_SCErrorString", referenced from:
  -[Reachability startNotifier] in Reachability.o
"_SCNetworkReachabilitySetDispatchQueue", referenced from:
  -[Reachability startNotifier] in Reachability.o
  -[Reachability stopNotifier] in Reachability.o
"_SCNetworkReachabilityGetFlags", referenced from:
  -[Reachability isReachable] in Reachability.o
  -[Reachability isReachableViaWWAN] in Reachability.o
  -[Reachability isReachableViaWiFi] in Reachability.o
  -[Reachability connectionRequired] in Reachability.o
  -[Reachability isConnectionOnDemand] in Reachability.o
  -[Reachability isInterventionRequired] in Reachability.o
  -[Reachability reachabilityFlags] in Reachability.o

如何解决这个问题？

推荐答案

可能你忘了添加SystemConfiguration.framework到您的项目。如果您不知道如何添加框架，请查看此。

Probably you forgot to add the SystemConfiguration.framework to your project. If you don't know how to add a framework have a look at this SO question.

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