问题
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
回答1:
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.
回答2:
I had a same problem and I found that under Project-> Build Rules, gcc compiler was being used which no longer exist with Xcode 5.
回答3:
first, if you use virtual machine, maybe it's the problem when it doesn't have grant to access into your project if not check your file Maybe you miss any file?
来源：https://stackoverflow.com/questions/19071688/xcode-5-missing-compiler-spec-llvm-4-2-error