架构arm64的未定义符号，似乎只是某些使用cocoapods的第三方框架随机发生了

分类：编程问答

如何解决架构arm64的未定义符号，似乎只是某些使用cocoapods的第三方框架随机发生了

发生了什么

  1. 我使用Cocoapods管理一些第三方框架
  2. 我使用了一些专用规范存储库
  3. 不止一个私人存储库依赖于相同的第三方容器
  4. 修改依赖项结构后，我构建了工作空间，它显示了以下错误：
Undefined symbols for architecture arm64:
  "_OBJC_METACLASS_$_UIView",referenced from:
      _OBJC_METACLASS_$_iCarousel in iCarousel.o
  "_OBJC_CLASS_$_UIButton",referenced from:
      objc-class-ref in iCarousel.o
  "_OBJC_CLASS_$_UIScrollView",referenced from:
      objc-class-ref in iCarousel.o
  "_OBJC_CLASS_$_UIScreen",referenced from:
      objc-class-ref in iCarousel.o
  "_OBJC_CLASS_$_UITapGestureRecognizer",referenced from:
      objc-class-ref in iCarousel.o
  "_OBJC_CLASS_$_UIView",referenced from:
      objc-class-ref in iCarousel.o
      _OBJC_CLASS_$_iCarousel in iCarousel.o
  "_OBJC_CLASS_$_UIBarButtonItem",referenced from:
      objc-class-ref in iCarousel.o
  "_UITrackingRunLoopMode",referenced from:
      -[iCarousel startAnimation] in iCarousel.o
  "_CGSizeZero",referenced from:
      -[iCarousel setUp] in iCarousel.o
  "_OBJC_CLASS_$_UIPanGestureRecognizer",referenced from:
      objc-class-ref in iCarousel.o
  "_UIAccessibilityTraitAllowsDirectInteraction",referenced from:
      -[iCarousel setUp] in iCarousel.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我为解决这个问题做了什么？（没有一个起作用）

  1. rm -rf ~/Library/Developer/Xcode/DerivedData/删除了Xcode缓存
  2. 按$ rm -rf "${HOME}/Library/Caches/CocoaPods" $rm -rf " pwd /Pods/" $pod update删除的Cocoapods缓存
  3. 将Xcode版本更新为12.0.1

哦，不，同样的错误！

接下来我要做什么...

我决定继续努力，于是将这些内容添加到我的Podfile中：

if target.name == "iCarousel"
  config.build_settings['OTHER_LDFLAGS'] ||= ['$(inherited)']
  config.build_settings['OTHER_LDFLAGS'] << '-framework "UIKit"'
  config.build_settings['OTHER_LDFLAGS'] << '-framework "CoreGraphics"'
end

然后，pod install

建立我的项目...

好消息！与iCarousel无关！坏消息是，另一个pod发生了相同的旧错误：PomeloPush 

Undefined symbols for architecture arm64:
  "_SCNetworkReachabilitySetDispatchQueue",referenced from:
      -[PomeloReachability startNotifier] in PomeloReachability.o
      -[PomeloReachability stopNotifier] in PomeloReachability.o
  "_SCError",referenced from:
      -[PomeloReachability startNotifier] in PomeloReachability.o
  "_SCErrorString",referenced from:
      -[PomeloReachability startNotifier] in PomeloReachability.o
  "_SCNetworkReachabilityGetFlags",referenced from:
      -[PomeloReachability isReachable] in PomeloReachability.o
      -[PomeloReachability isReachableViaWWAN] in PomeloReachability.o
      -[PomeloReachability isReachableViaWiFi] in PomeloReachability.o
      -[PomeloReachability connectionRequired] in PomeloReachability.o
      -[PomeloReachability isConnectionOnDemand] in PomeloReachability.o
      -[PomeloReachability isInterventionRequired] in PomeloReachability.o
      -[PomeloReachability reachabilityFlags] in PomeloReachability.o
      ...
  "_SCNetworkReachabilitySetCallback",referenced from:
      -[PomeloReachability startNotifier] in PomeloReachability.o
      -[PomeloReachability stopNotifier] in PomeloReachability.o
  "_SCNetworkReachabilityCreateWithAddress",referenced from:
      +[PomeloReachability reachabilityWithAddress:] in PomeloReachability.o
  "_CFHostStartInfoResolution",referenced from:
      +[PomeloHostRequest nslookup:] in PomeloHostRequest.o
  "_OBJC_CLASS_$_UIDevice",referenced from:
      objc-class-ref in PomeloClient.o
  "_SCNetworkReachabilityCreateWithName",referenced from:
      +[PomeloReachability reachabilityWithHostname:] in PomeloReachability.o
  "_CFHostCreateWithName",referenced from:
      +[PomeloHostRequest nslookup:] in PomeloHostRequest.o
  "_CFHostGetAddressing",referenced from:
      +[PomeloHostRequest nslookup:] in PomeloHostRequest.o
  "_OBJC_CLASS_$_UIPasteboard",referenced from:
      objc-class-ref in Pomelo_OpenUDID.o
  "_UIApplicationDidEnterBackgroundNotification",referenced from:
      -[PomeloClient addNotification] in PomeloClient.o
  "_UIApplicationWillEnterForegroundNotification",referenced from:
      -[PomeloClient addNotification] in PomeloClient.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

然后我在Podfile中添加了一些类似的代码 然后pod install，构建 哦，另一个Pod发生了类似的错误：

Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_UIViewController",referenced from:
      __OBJC_$_CATEGORY_UIViewController_$_KeyboardAnimation in UIViewController+KeyboardAnimation.o
  "_UIKeyboardAnimationDurationUserInfoKey",referenced from:
      -[UIViewController(KeyboardAnimation) getDurationFromNotification:] in UIViewController+KeyboardAnimation.o
  "_UIKeyboardAnimationCurveUserInfoKey",referenced from:
      -[UIViewController(KeyboardAnimation) getAnimationCurveFromNotification:] in UIViewController+KeyboardAnimation.o
  "_UIKeyboardFrameEndUserInfoKey",referenced from:
      -[UIViewController(KeyboardAnimation) getKeyboardRectFromNotification:] in UIViewController+KeyboardAnimation.o
  "_UIKeyboardWillChangeFrameNotification",referenced from:
      -[UIViewController(KeyboardAnimation) an_subscribeKeyboardFrameChangesWithAnimations:] in UIViewController+KeyboardAnimation.o
      -[UIViewController(KeyboardAnimation) an_unsubscribeKeyboardFrameChanges] in UIViewController+KeyboardAnimation.o
  "_UIKeyboardWillShowNotification",referenced from:
      -[UIViewController(KeyboardAnimation) an_subscribeKeyboardWithBeforeAnimations:animations:completion:] in UIViewController+KeyboardAnimation.o
      -[UIViewController(KeyboardAnimation) an_unsubscribeKeyboard] in UIViewController+KeyboardAnimation.o
  "_OBJC_CLASS_$_UIView",referenced from:
      objc-class-ref in UIViewController+KeyboardAnimation.o
  "_UIKeyboardWillHideNotification",referenced from:
      -[UIViewController(KeyboardAnimation) an_subscribeKeyboardWithBeforeAnimations:animations:completion:] in UIViewController+KeyboardAnimation.o
      -[UIViewController(KeyboardAnimation) an_unsubscribeKeyboard] in UIViewController+KeyboardAnimation.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

目前，它发生在pop，AFNetworking，SDWebImage，iCarousel，MJRefresh等上……

任何建议都可以帮助将不胜感激！！我已经坚持了一个星期...

解决方法

通过观察您的观察结果，您可以尝试以下建议：

  1. 检查您的cocoapods是否已更新为最新版本。
  2. 使用Pod Deintegrate移除所有Pod。
  3. 检查pod的依赖项，然后尝试一一安装。吊舱安装。
  4. 还要检查库对快速版本的支持。
  5. 如果两个库都具有相同的代码或扩展名，则会出现错误。

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