objective-c - 将 Facebook 库与 MGTwitterEngine 链接时出错

Question

我正在尝试将 Facebook 集成到我的应用程序中，并且已经毫无问题地实现了 MGTwitterEngine。我现在一直收到错误，因为我尝试同时实现 Facebook sdk 和 MGTwitterEngine。我读到在两个 SDK 之间有一个重复的库，并且有人说它与 JSON 库有关。我从 Facebook sdk 中删除了它，但我仍然收到错误消息。有谁知道可能是什么问题？

所以我知道它在错误中指的是我的 armv6 但在我尝试运行 Facebook sdk 之前根本没有错误

谢谢

Ld "/Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Intermediates/grocery.build/Release-iphoneos/grocery.build/Objects-normal/armv6/grocery" normal armv6
cd /Users/Alex/Documents/Dictator/Lotto
setenv IPHONEOS_DEPLOYMENT_TARGET 3.1
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch armv6 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk -L/Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Products/Release-iphoneos "-L/Users/Alex/Documents/Dictator/Lotto/Classes/Twitter+OAuth 2/SAOAuthTwitterEngine" -F/Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Products/Release-iphoneos -filelist "/Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Intermediates/grocery.build/Release-iphoneos/grocery.build/Objects-normal/armv6/grocery.LinkFileList" -dead_strip -miphoneos-version-min=3.1 -framework Security -lxml2 -framework MessageUI -framework Foundation -framework UIKit -framework CoreGraphics -framework CoreData -framework MapKit -framework SystemConfiguration -lOAuth -o "/Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Intermediates/grocery.build/Release-iphoneos/Lotto Fetcher.build/Objects-normal/armv6/grocery"

ld: duplicate symbol _main in /Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Intermediates/grocery.build/Release-iphoneos/Lotto Fetcher.build/Objects-normal/armv6/main-280587BD193E8878.o and /Users/Alex/Library/Developer/Xcode/DerivedData/grocery-bhrkiajnjqfieahhdxilwtjggbqc/Build/Intermediates/grocery.build/Release-iphoneos/Lotto Fetcher.build/Objects-normal/armv6/main-B9843B6026D6EFA4.o for architecture armv6    

clang: error: linker command failed with exit code 1 (use -v to see invocation)
Duplicate symbol

Answer 1

在您的项目中搜索 main.m 文件的两个副本。 :-)