【发布时间】：2012-02-26 12:45:23
【问题描述】：
在我进行构建之前，我的项目没有错误。这是错误日志。
Ld "/Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Products/Debug-iphonesimulator/WC Class Codes.app/WC Class Codes" normal i386
cd "/Users/stephanieasan/Desktop/SDK Projects/WC Class Codes"
setenv MACOSX_DEPLOYMENT_TARGET 10.6
setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -L/Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Products/Debug-iphonesimulator -F/Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Products/Debug-iphonesimulator -filelist "/Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Intermediates/WC Class Codes.build/Debug-iphonesimulator/WC Class Codes.build/Objects-normal/i386/WC Class Codes.LinkFileList" -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=40000 -framework iAd -lsqlite3.0 -framework UIKit -framework Foundation -framework CoreGraphics -o "/Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Products/Debug-iphonesimulator/WC Class Codes.app/WC Class Codes"
.
ld: duplicate symbol _OBJC_IVAR_$_ListTableViewController.DBPath in /Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Intermediates/WC Class Codes.build/Debug-iphonesimulator/WC Class Codes.build/Objects-normal/i386/Code.o and /Users/stephanieasan/Library/Developer/Xcode/DerivedData/WC_Class_Codes-fgxjeudpfimhnebtmvmxtzlirxnz/Build/Intermediates/WC Class Codes.build/Debug-iphonesimulator/WC Class Codes.build/Objects-normal/i386/ListTableViewController.o for architecture i386
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang failed with exit code 1
我很困惑，我已经尝试调试了几个小时没有成功。
【问题讨论】：
-
我能从中收集到的唯一信息是，您的项目中有一个重复的
ListTableViewController定义。如果没有有关您的项目的更多详细信息，很难确切地说出原因。产生相同错误的最小示例会有所帮助。 -
您是否有一个名为 DBPath 的全局变量，可能定义在名为“Code”的类以及名为“ListTableViewController”的类中？每个类都可能自己编译，但是当您尝试将它们链接到同一个可执行文件时，您会遇到冲突。
标签： objective-c ios xcode linker-errors mach-o