【发布时间】：2015-11-28 13:19:29
【问题描述】：
我正在安装 Mixpanel（由于更大的问题，我不使用 CocoaPods），一旦我尝试构建，我就遇到了这个问题。显然它在链接过程中：
Ld /Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Products/Debug-iphonesimulator/Skillet.app/Skillet normal x86_64
cd /Users/zheref/Code/skillet/skillet-ios
export IPHONEOS_DEPLOYMENT_TARGET=8.1
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 x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.4.sdk -L/Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Products/Debug-iphonesimulator -L/Users/zheref/Code/skillet/skillet-ios/Pods/Brightcove-Player-SDK/Library -L/Users/zheref/Code/skillet/skillet-ios/Pods/Google/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleAppUtilities/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleAuthUtilities/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleNetworkingUtilities/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleSignIn/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleSymbolUtilities/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Pods/GoogleUtilities/Libraries -L/Users/zheref/Code/skillet/skillet-ios/Skillet -F/Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Products/Debug-iphonesimulator -F/Users/zheref/Code/skillet/skillet-ios -F/Users/zheref/Code/vendors/parse-library-1.7.5 -filelist /Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Intermediates/Skillet.build/Debug-iphonesimulator/Skillet.build/Objects-normal/x86_64/Skillet.LinkFileList -Xlinker -rpath -Xlinker @executable_path/Frameworks -Xlinker -objc_abi_version -Xlinker 2 -ObjC -lBCOVPlayerSDK -lGGLCore -lGGLSignIn -lGSDK_Overload -lGTMOAuth2_external -lGTMOAuth2_internal -lGTMSessionFetcher_core -lGTMSessionFetcher_full -lGTMStackTrace -lGTM_AddressBook -lGTM_DebugUtils -lGTM_GTMURLBuilder -lGTM_KVO -lGTM_NSDictionary+URLArguments -lGTM_NSScannerJSON -lGTM_NSStringHTML -lGTM_NSStringXML -lGTM_Regex -lGTM_RoundedRectPath -lGTM_StringEncoding -lGTM_SystemVersion -lGTM_UIFont+LineHeight -lGTM_core -lGTM_iPhone -lOpenInChrome -lPods-PaymentKit -lPods-Stripe -lSignIn -framework AVFoundation -framework AddressBook -framework CoreMedia -framework CoreText -framework Foundation -framework MediaPlayer -framework Security -framework StoreKit -framework SystemConfiguration -ObjC -lBCOVPlayerSDK -lGGLCore -lGGLSignIn -lGSDK_Overload -lGTMOAuth2_external -lGTMOAuth2_internal -lGTMSessionFetcher_core -lGTMSessionFetcher_full -lGTMStackTrace -lGTM_AddressBook -lGTM_DebugUtils -lGTM_GTMURLBuilder -lGTM_KVO -lGTM_NSDictionary+URLArguments -lGTM_NSScannerJSON -lGTM_NSStringHTML -lGTM_NSStringXML -lGTM_Regex -lGTM_RoundedRectPath -lGTM_StringEncoding -lGTM_SystemVersion -lGTM_UIFont+LineHeight -lGTM_core -lGTM_iPhone -lOpenInChrome -lPods-PaymentKit -lPods-Stripe -lSignIn -framework AVFoundation -framework AddressBook -framework CoreMedia -framework CoreText -framework Foundation -framework MediaPlayer -framework Security -framework StoreKit -framework SystemConfiguration -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator -Xlinker -add_ast_path -Xlinker /Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Intermediates/Skillet.build/Debug-iphonesimulator/Skillet.build/Objects-normal/x86_64/Skillet.swiftmodule -mios-simulator-version-min=8.1 -licucore -framework QuartzCore -framework CoreGraphics -framework Accelerate -framework CoreTelephony -framework SystemConfiguration -framework Foundation -framework UIKit -framework Bolts -framework Social -framework Accounts -framework Crashlytics -framework AVFoundation -framework CoreMedia -framework Parse -framework CoreText -framework MediaAccessibility -framework MediaPlayer -framework CFNetwork -framework Security -framework AudioToolbox -framework CoreLocation -lsqlite3 -lz -framework MobileCoreServices -framework StoreKit -framework FBSDKShareKit -framework Fabric -framework FBSDKCoreKit -framework FBSDKLoginKit -lPods -Xlinker -dependency_info -Xlinker /Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Intermediates/Skillet.build/Debug-iphonesimulator/Skillet.build/Objects-normal/x86_64/Skillet_dependency_info.dat -o /Users/zheref/Library/Developer/Xcode/DerivedData/Skillet-gyrvrgajwggdcmhhtxflcerwovjx/Build/Products/Debug-iphonesimulator/Skillet.app/Skillet
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_Mixpanel", referenced from:
__TMaCSo8Mixpanel in AppDelegate.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
我使用的是 Swift 语言（根本不是 Objective-C）。
提前致谢。
更新 1
当我放行时出现问题： Mixpanel.sharedInstanceWithToken(MIXPANEL_TOKEN); 而不是之前。
当我在项目中安装 Mixpanel 代码时没有问题，甚至当我从桥接头导入它时也没有问题。
【问题讨论】：
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即使你的代码没有使用objective-c，那个特定的库也是写在里面的。我不确定您是否必须为这种特殊情况创建桥头。看看：stackoverflow.com/questions/28016246/… 和 medium.com/ios-os-x-development/…。另外，看看这个：github.com/soffes/Mixpanel
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桥接文件似乎没有问题。当我从桥接头导入它时，它不会带来任何问题。当我输入
Mixpanel.sharedInstanceWithToken(MIXPANEL_TOKEN);时问题就开始了 -
cocoapods 有什么问题？我在所有项目中都使用它们，从来没有遇到过问题。在这种情况下，请确保库文件包含在您正在编译的目标中。
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是的，我也有同样的问题....请问您是如何解决这个问题的？
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您是否将框架导入该类？可能在类的顶部导入 Mixpanel？