架構arm64的重複符號 - ios

Question

我有我的ios應用程序的問題。只要我集成了admob適配器，我遇到了一些問題。我能做什麼？

重複的符號_OBJC_IVAR _ $ _ CDataScanner.data在： /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects - 正常/ arm64/CDataScanner.o /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CDataScanner.o）

duplicate symbol _OBJC_IVAR_$_CJSONScanner.nullObject in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_IVAR_$_CJSONScanner.strictEscapeCodes in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _kJSONScannerErrorDomain in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_IVAR_$_CJSONScanner.allowedEncoding in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_IVAR_$_CJSONScanner.options in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_CLASS_$_CJSONScanner in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_METACLASS_$_CJSONScanner in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONScanner.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONScanner.o) 
duplicate symbol _OBJC_METACLASS_$_CJSONSerialization in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONSerialization.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONSerialization.o) 
duplicate symbol _OBJC_CLASS_$_CJSONSerialization in: 
    /Users/Sven/Library/Developer/Xcode/DerivedData/TrackQuiz-fyuyditzrtsdmgbefbdoggekhfeg/Build/Intermediates/TrackQuiz.build/Debug-iphoneos/TrackQuiz.build/Objects-normal/arm64/CJSONSerialization.o 
    /Users/Sven/Documents/GoogleMobileAdsSdkiOS7/AdMobMeditation/MobFox/AdMobAdapter/libAdapterSDKMobFox.a(CJSONSerialization.o) 
ld: 30 duplicate symbols for architecture arm64 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

任何幫助將是巨大的！對不起，但我不知道，我必須從這裏開始。

Answer 1

檢查是否意外地#import'編.m文件，而不是.h文件。

Answer 2

看來不止一個類有一個名爲data的類變量。

您可能希望在代碼中使其成爲完整屬性，或者更改重複變量的名稱，以免它們在編譯時發生衝突。

編輯：第二次看，看起來你有幾次碰撞......你有沒有在同一個文件上執行兩次#include？

也許#ifndef可能有用嗎？