Xcode 退出代码 1 - 重复符号

Xcode Exit Code 1 - Duplicate Symbol

提问by Josh Kahane

Sorry I know this has been covered all over the place, only I can't fix this to save my life.

对不起，我知道这已经被覆盖了很多地方，只是我无法解决这个问题来挽救我的生命。

If someone could explain clearly what I might have done and what I might be able to do to fix this I would be forever grateful.

如果有人能清楚地解释我可能做了什么以及我可以做些什么来解决这个问题，我将永远感激不尽。

Here is my error:

这是我的错误：

Command /Xcode 4/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1

命令 /Xcode 4/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 失败，退出代码为 1

ld: duplicate symbol _OBJC_IVAR_$_sunnyHillsTL._tileMap in /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos/libcocos2d libraries.a(sunnyHillsTL.o) and /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Intermediates/workingTitle.build/Debug-iphoneos/workingTitle.build/Objects-normal/armv7/sunnyHillsTL.o


Ld /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos/workingTitle.app/workingTitle normal armv7
    cd "/Users/kahanejosh/Documents/iPhone:Mac Dev/Working Title/workingTitle"
    setenv IPHONEOS_DEPLOYMENT_TARGET 3.0
    setenv PATH "/Xcode 4/Platforms/iPhoneOS.platform/Developer/usr/bin:/Xcode 4/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    "/Xcode 4/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2" -arch armv7 -isysroot "/Xcode 4/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk" -L/Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos -F/Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos -filelist /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Intermediates/workingTitle.build/Debug-iphoneos/workingTitle.build/Objects-normal/armv7/workingTitle.LinkFileList -dead_strip -all_load -ObjC -miphoneos-version-min=3.0 -framework CoreGraphics -framework Foundation -framework OpenGLES -framework QuartzCore -framework UIKit -framework AudioToolbox -framework OpenAL -lz -framework AVFoundation "-lcocos2d libraries" -o /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos/workingTitle.app/workingTitle

ld: duplicate symbol _OBJC_IVAR_$_sunnyHillsTL._tileMap in /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Products/Debug-iphoneos/libcocos2d libraries.a(sunnyHillsTL.o) and /Users/kahanejosh/Library/Developer/Xcode/DerivedData/workingTitle-cawhuhbkmwcesmbqxvkbkbatdbze/Build/Intermediates/workingTitle.build/Debug-iphoneos/workingTitle.build/Objects-normal/armv7/sunnyHillsTL.o
collect2: ld returned 1 exit status
Command /Xcode 4/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1

采纳答案by Jason Coco

It looks like you have two targets set up and your source is getting used in both. So, you create a static library with the sunnyHillsTLclass that gets put into libcocoas2d libraries.aand then you are using the same object file as well. Either don't directly use the class in your target (don't add the class to the target) if you're using the library, or don't have this class be compiled as part of the static library.

看起来您设置了两个目标，并且您的源在这两个目标中都得到了使用。因此，您使用sunnHillsTL类创建了一个静态库，该类被放入libcocoas2d libraries.a 中，然后您也使用了相同的目标文件。如果您正在使用库，请不要直接使用目标中的类（不要将类添加到目标），或者不要将此类编译为静态库的一部分。

回答by Macmade

Seems like you have two instance variables named ?tileMap? in your ?sunnyHillsTL? class...

好像你有两个名为 ?tileMap? 的实例变量？在你的？sunnyHillsTL？班级...

回答by losingle

install Command Line Tools from your Xcode. in Xcode -> Preferences -> Downloads -> Components ->Command Line Tools

从您的 Xcode 安装命令行工具。在 Xcode -> 首选项 -> 下载 -> 组件 -> 命令行工具