我正在尝试将Facebook集成到我的应用程序中，并且已经实施了MGTwitterEngine而没有任何问题。我一直在尝试实施Facebook sdk和MGTwitterEngine，我一直收到错误。我已经读过两个SDK之间有一个重复的库，个人说它与JSON库有关。我从Facebook sdk删除它但我仍然收到错误。有谁知道这个问题是什么？
所以我理解它是指我的armv6中的错误但是在我尝试运行Facebook sdk之前没有任何错误
由于
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
答案 0 :(得分：1)
在项目中搜索main.m文件的两个副本。 ： - ）