Apple Match-O链接器错误Xcode 5.1.1

时间：2014-11-03 13:04:33

标签： ios xcode google-drive-api

美好的一天！我最近在做一个需要连接到Google云端硬盘的应用，现在我按照这些说明https://developers.google.com/drive/ios/quickstart进行了操作。现在我在构建项目时遇到错误。这是错误消息，

Ld /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/ECOSIGNATURE.app/ECOSIGNATURE normal i386
    cd /Users/ogcpaslevis/Desktop/ECOSIGNATURE
    export IPHONEOS_DEPLOYMENT_TARGET=7.1
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.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 i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk -L/Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator -F/Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator -filelist /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/ECOSIGNATURE.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -ObjC -all_load -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=7.1 -framework MobileCoreServices -framework SystemConfiguration -framework Security /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a -framework CoreGraphics -framework UIKit -framework Foundation -Xlinker -dependency_info -Xlinker /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/ECOSIGNATURE_dependency_info.dat -o /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/ECOSIGNATURE.app/ECOSIGNATURE

duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.completionBlock_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.delegate_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.finishedSelector_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.signIn_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.savedCookiePolicy_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.webView_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.backButton_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.forwardButton_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.initialActivityIndicator_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.navButtonsView_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.rightBarButtonItem_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.request_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.systemCookies_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.signInCookies_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.popViewBlock_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.keychainItemName_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.initialHTMLString_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.browserCookiesURL_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.userData_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.properties_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.didDismissSelf_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.hasNotifiedWebViewStartedLoading_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.hasCalledFinished_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.hasDoneFinalRedirect_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.mustShowActivityIndicator_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _kGTMOAuth2CookiesWillSwapOut in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.isViewShown_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.didViewAppear_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _kGTMOAuth2CookiesDidSwapIn in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_IVAR_$_GTMOAuth2ViewControllerTouch.keychainItemAccessibility_ in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _kGTMOAuth2KeychainErrorDomain in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_CLASS_$_GTMOAuth2ViewControllerTouch in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_METACLASS_$_GTMOAuth2ViewControllerTouch in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_CLASS_$_GTMOAuth2Keychain in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
duplicate symbol _OBJC_METACLASS_$_GTMOAuth2Keychain in:
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Intermediates/ECOSIGNATURE.build/Debug-iphonesimulator/ECOSIGNATURE.build/Objects-normal/i386/GTMOAuth2ViewControllerTouch.o
    /Users/ogcpaslevis/Library/Developer/Xcode/DerivedData/ECOSIGNATURE-axdjydxlfmeraobatbkzaysdroun/Build/Products/Debug-iphonesimulator/libGTLTouchStaticLib.a(GTMOAuth2ViewControllerTouch.o)
ld: 35 duplicate symbols for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我该如何解决此错误？谢谢！

2 个答案:

答案 0 :(得分：0)

步骤：

在目标设置中检查构建阶段。 检查文件是否存在两次或一次。 如果文件存在两次删除一个。如果没有删除底部最新的文件。 再建一次。

来自：duplicate symbols for architecture i386 clang

答案 1 :(得分：0)

错误背后的原因可能是您已经实施了GTMOAuth2ViewControllerTouch两次。

可能是您错误地导入了YourClass.m或YourClass.h文件中的GTMOAuth2ViewControllerTouch.m文件，而不是GTMOAuth2ViewControllerTouch.h

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