ios - 重复符号 _OBJC_IVAR_$_AFHTTPRequestOperation._responseSerializer 在

Question

我正在使用 Chilkat 并在安装 AFNetworking 后遇到这些错误:

Undefined symbols for architecture armv7:
  "_res_9_query", referenced from:
      ChilkatResolve::bestMxLookup(char const*, StringBuffer&, LogBase&, bool) in libchilkatIos.a(ChilkatResolve.o)
      ChilkatResolve::dkimLookup(char const*, StringBuffer&, LogBase&, bool) in libchilkatIos.a(ChilkatResolve.o)
      ChilkatResolve::mxLookup(char const*, ScoredStrings&, LogBase&, bool) in libchilkatIos.a(ChilkatResolve.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我在网上找到了解决方案:

Add “-lresolv” to your list of link libraries.

当我搜索它时找不到 -lresolv 但我确实找到了 libresolv.9.dylib 所以我添加了它，现在我得到一个新错误:

Apple Mach-O Linker Error


206 duplicate symbols for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

有没有人遇到过这个问题？我该如何解决这个问题？

我认为错误与 AFNetworking 有关:

duplicate symbol _OBJC_IVAR_$_AFHTTPRequestOperation._responseSerializer in:
    /Users/jsuske/Library/Developer/Xcode/DerivedData/SchedulingiPadApplication-dumroeauljdomkhdnvscdxjvlqke/Build/Intermediates/SchedulingiPadApplication.build/Debug-iphoneos/SchedulingiPadApplication.build/Objects-normal/armv7/AFHTTPRequestOperation.o
    /Users/jsuske/Library/Developer/Xcode/DerivedData/SchedulingiPadApplication-dumroeauljdomkhdnvscdxjvlqke/Build/Products/Debug-iphoneos/libPods-AFNetworking.a(AFHTTPRequestOperation.o)
duplicate symbol _OBJC_IVAR_$_AFHTTPRequestOperation._responseObject in:
    /Users/jsuske/Library/Developer/Xcode/DerivedData/SchedulingiPadApplication-dumroeauljdomkhdnvscdxjvlqke/Build/Intermediates/SchedulingiPadApplication.build/Debug-iphoneos/SchedulingiPadApplication.build/Objects-normal/armv7/AFHTTPRequestOperation.o

duplicate symbol _AFNetworkingReachabilityNotificationStatusItem in:
    /Users/jsuske/Library/Developer/Xcode/DerivedData/SchedulingiPadApplication-dumroeauljdomkhdnvscdxjvlqke/Build/Intermediates/SchedulingiPadApplication.build/Debug-iphoneos/SchedulingiPadApplication.build/Objects-normal/armv7/AFNetworkReachabilityManager.o
    /Users/jsuske/Library/Developer/Xcode/DerivedData/SchedulingiPadApplication-dumroeauljdomkhdnvscdxjvlqke/Build/Products/Debug-iphoneos/libPods-AFNetworking.a(AFNetworkReachabilityManager.o)

为什么一直说iphone？我正在构建一个 iPad 应用程序

这是我的 Pod 文件:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '7.0'
pod 'AFNetworking', '~> 2.5'

Answer 1

这里的问题很可能是您链接了 AFNetworking 库两次，一次是直接在您的项目上，另一次是通过 Cocoapods。查看主项目文件的构建阶段。确保您只链接 libPods 而不是 AFNetworking 或任何其他通过 Cocoapods 使用的库。这应该可以修复链接中的重复符号。