Xcode 5“缺少编译器规范LLVM 4.2”错误

Question

I am currently trying to build my project in Xcode 5. Build fails with error:

Dependency Analysis Error: missing compiler specification <XCCompilerSpecification: Some memory address here :'com.apple.compilers.llvmgcc42':MISSING:Default> for file

for all code files in project.

The project used to be built in Xcode 4.6 with LLVM 4.2 and now Xcode 5 only supports LLVM 5. So there is obviously something related to that here.

I have set the build settings in Xcode 5 to use LLVM 5 and the build still fails for the same reason. Has anyone encountered this before and know how to stop Xcode 5 from looking for LLVM 4.2 which it no longer supports?

This question is as a result of iOS 6 vs 7 appearance build settings

Answer 1

我有一个同样的问题，我发现在Project-> Build Rules下，正在使用gcc编译器，该编译器在Xcode 5中不再存在。

Answer 2

I found something similar in an old project I have today. What happened is that there was a subproject in my project and that one wasn't set to llvm5.

You may want to do a search in your directory to find a file specifying llvm 4.2, like such:

MyMac:~/path/to/my/project $ grep -rHin llvm *

MyProject.xcodeproj/project.pbxproj:334: GCC_VERSION = com.apple.compilers.llvmgcc42;
MyProject.xcodeproj/project.pbxproj:348: GCC_VERSION = com.apple.compilers.llvmgcc42;

If that's the case, try updating that subproject or removing it altogether, see if you can at least clean your build.

Hope this helps.

Answer 3

首先，如果您使用虚拟机，那么如果不检查文件就没有权限访问您的项目，可能是问题所在也许您错过了任何文件？