链接错误重复符号 _kCHPointerSize 与 CHDataStructure 静态库
我正在尝试在 Xcode 项目中使用 iPhone 的 CHDataStructures 静态库。我将其与 # import "CHDataStructures.h" 一起包含在我的类标头中。但是，当我编译项目时，出现错误：
d： /Users/sam/Desktop/Apps/libCHDataStructures.a(Util.o) 和 /Users/sam/Desktop/Apps/build/Apps.build/Debug-iphonesimulator/Apps.build/ 中重复符号 _kCHPointerSize对象-normal/i386/AppsAppDelegate.o Collect2: ld 返回 1 退出状态 命令 /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++-4.2 失败，退出代码 1
我正在使用 GCC-4.2 编译器，并且我也尝试过 LLVM GCC 4.2。我还尝试在构建设置中设置 -ObjC、-all_build 和 -force_build 标志，但无法编译。我还尝试清理目标，并确保目标二进制文件中是否包含静态库。但我无法找出问题所在。有人可以帮忙吗？
I am trying to use the CHDataStructures static library for iPhone in my Xcode project. I included it with # import "CHDataStructures.h" in my class header. However, when I compile my project I get the error:
d: duplicate symbol _kCHPointerSize in /Users/sam/Desktop/Apps/libCHDataStructures.a(Util.o) and /Users/sam/Desktop/Apps/build/Apps.build/Debug-iphonesimulator/Apps.build/Objects-normal/i386/AppsAppDelegate.o
collect2: ld returned 1 exit status
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++-4.2 failed with exit code 1
I am using GCC-4.2 compiler and I have tried LLVM GCC 4.2 as well. I also tried with -ObjC, -all_build, and -force_build flags set in the build setting but it is not compiling. I also tried to clean Target, and also make sure with static lib included with target binary or not. But I couldn't figure out the problem. Can anyone help?
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现在可能已经太晚了，但我刚刚遇到了类似的问题，所以如果它仍然是一个问题，请检查您的导入语句。
看来您可能在
AppDelegate和Util类中引用kCHPointerSize。就我而言，我经常导入相同的
.h文件。我删除了其中一条导入语句，问题就解决了。Probably far too late now but I just ran into something similar so if it is still an issue, check your import statements.
It looks like you might be referencing
kCHPointerSizein both theAppDelegateand yourUtilclass.In my case I had imported the same
.hfile once too often. I removed one of the import statements and the problem was solved.打开Util.h文件，
将该行替换
为
Open Util.h file,
replace the line
with