Ошибка команды компоновщика с кодом выхода 1

Question

У меня приложение работает хорошо, но я добавляю файлы чата (Xib - .h - .m) и все, что хорошо, но когда я пытаюсь запустить его на своем iPhone i получил эту проблему:

linker command failed with exit code 1 

    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._totalBytesRead in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._uploadProgress in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._downloadProgress in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._authenticationChallenge in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._cacheResponse in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_IVAR_$_AFURLConnectionOperation._redirectResponse in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_CLASS_$_AFURLConnectionOperation in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_METACLASS_$_AFURLConnectionOperation in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation2.o 
duplicate symbol _OBJC_CLASS_$_AFHTTPRequestOperation in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFHTTPRequestOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFHTTPRequestOperation2.o 
duplicate symbol _OBJC_METACLASS_$_AFHTTPRequestOperation in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFHTTPRequestOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFHTTPRequestOperation2.o 
duplicate symbol _AFNetworkingOperationFailingURLResponseErrorKey in: 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLConnectionOperation.o 
    /Users/ZzXzZ/Library/Developer/Xcode/DerivedData/9otk-exeoubkkvfbvbkejxccjhfiqjkrw/Build/Intermediates/9otk.build/Debug-iphoneos/9otk.build/Objects-normal/armv7/AFURLResponseSerialization2.o 
ld: 71 duplicate symbols for architecture armv7 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

Answer 1

из журнала, кажется, что вы переименовали в [м] файлы AFxxxxx.h с суффиксом 2. Попробуйте удалить лишние файлы (AFxxxxx2.h [м]). Очистите проект и постройте его снова. Удачи.