iOS Undefined symbols for architecture arm64解决办法

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Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_YYCache", referenced from:
      objc-class-ref in LFNetworking.o
  "_OBJC_CLASS_$_AFHTTPRequestSerializer", referenced from:
      objc-class-ref in LFNetworking.o
  "_OBJC_CLASS_$_AFJSONResponseSerializer", referenced from:
      objc-class-ref in LFNetworking.o
  "_OBJC_CLASS_$_AFHTTPSessionManager", referenced from:
      objc-class-ref in LFNetworking.o
ld: symbol(s) not found for architecture arm64

出现这种错误有多种可能：

1.Build Setting->Architectures查看是否包含arm64指令集

2.如果用CocoaPods导入的库，Build Setting->Linking->Other Linker Flags，添加$(inherited)

暂时列出这几种，以后遇到了再补充

iOS Undefined symbols for architecture arm64解决办法

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原文地址：http://www.cnblogs.com/zhanglinfeng/p/5774033.html