Undefined symbols for architecture arm64:错误

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

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

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3.该类只有@interface,没有@implementation

链接:https://www.jianshu.com/p/2c1fa84c781f

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