iOS开发 ☞ linker command failed with exit code 1 (use -v to see invocation)-优快云博客

本文链接：https://blog.youkuaiyun.com/magicZYJ/article/details/52242148

本文介绍了一种常见的iOS开发中遇到的问题：在引入第三方SDK时，由于缺少必要的SystemConfiguration.framework而导致的链接错误。文章详细列出了错误信息，并提供了解决方案。

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1、当我们按部就班的导入第三方框架的时候，有时会报如下错误：

Undefined symbols for architecture x86_64:
  "_SCNetworkReachabilityCreateWithAddress", referenced from:
      +[EMReachability reachabilityWithAddress:] in libHyphenateSDK.a(EMReachability.o)
  "_SCNetworkReachabilityCreateWithName", referenced from:
      +[EMReachability reachabilityWithHostName:] in libHyphenateSDK.a(EMReachability.o)
  "_SCNetworkReachabilityGetFlags", referenced from:
      -[EMReachability currentReachabilityStatus] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isReachable] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isConnectionRequired] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isConnectionOnDemand] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isInterventionRequired] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isReachableViaWWAN] in libHyphenateSDK.a(EMReachability.o)
      -[EMReachability isReachableViaWiFi] in libHyphenateSDK.a(EMReachability.o)
      ...
  "_SCNetworkReachabilityScheduleWithRunLoop", referenced from:
      -[EMReachability startNotifier] in libHyphenateSDK.a(EMReachability.o)
  "_SCNetworkReachabilitySetCallback", referenced from:
      -[EMReachability startNotifier] in libHyphenateSDK.a(EMReachability.o)
  "_SCNetworkReachabilityUnscheduleFromRunLoop", referenced from:
      -[EMReachability stopNotifier] in libHyphenateSDK.a(EMReachability.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)