我最近在我的macbookpro 10.7.2上安装了Xcode 4.2。我把我的驱动器划分为BootCamp。当我安装XCode 4.2时，我运行了XCode，我试着看看它是否可以简单地构建东西，所以我选择了一个命令行工具。向导完成生成文件后，我只是运行它，它已经给了我一个错误。我尝试了其他模板，它产生了同样的错误。什么是这个问题的解决方案？
无论如何，这是错误：
Clang LLVM 1.0 Error
Command /Developer/usr/bin/clang failed with exit code 11
ProcessPCH /Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/PrecompiledHeaders/SecondApp-Prefix-grjbjgpsgeilsbghzjmhjjxmgsqx/SecondApp-Prefix.pch.pth SecondApp/SecondApp-Prefix.pch normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/revin122/Downloads/Ex_Files_ObjC_EssT/exercise_files/ch03/SecondApp
setenv LANG en_US.US-ASCII
/Developer/usr/bin/clang -x objective-c-header -arch x86_64 -fmessage-length=0 -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -std=gnu99 -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wparentheses -Wswitch -Wno-unused-parameter -Wunused-variable -Wunused-value -Wshorten-64-to-32 -DDEBUG -isysroot /Developer/SDKs/MacOSX10.7.sdk -fasm-blocks -mmacosx-version-min=10.6 -gdwarf-2 -Wno-sign-conversion "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -iquote /Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/SecondApp-generated-files.hmap -I/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/SecondApp-own-target-headers.hmap -I/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/SecondApp-all-target-headers.hmap -iquote /Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/SecondApp-project-headers.hmap -I/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Products/Debug/include -I/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/DerivedSources/x86_64 -I/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Intermediates/SecondApp.build/Debug/SecondApp.build/DerivedSources -F/Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/Products/Debug -c /Users/revin122/Downloads/Ex_Files_ObjC_EssT/exercise_files/ch03/SecondApp/SecondApp/SecondApp-Prefix.pch -o /Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/PrecompiledHeaders/SecondApp-Prefix-grjbjgpsgeilsbghzjmhjjxmgsqx/SecondApp-Prefix.pch.pth -MMD -MT dependencies -MF /Users/revin122/Library/Developer/Xcode/DerivedData/SecondApp-dderlmctlgoalofwkqvuhanbimji/Build/PrecompiledHeaders/SecondApp-Prefix-grjbjgpsgeilsbghzjmhjjxmgsqx/SecondApp-Prefix.pch.d
Command /Developer/usr/bin/clang failed with exit code 11
答案 0 :(得分：0)
要尝试缩小此处的问题，尝试的一件事是将编译器从“Apple LLVM Complier 3.0”更改为“LLVM GCC 4.2”，看看是否得到不同的结果。这可能会开始缩小正在发生的事情。
另一件值得尝试的事情就是重新安装Xcode 4.2。一些人 - 我自己包括 - 发现初始安装很糟糕但重新安装在顶部修复了问题。