ios - Xcode 5 "Missing compiler spec LLVM 4.2" error

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

我遇到了同样的问题，我发现在 Project-> Build Rules 下，正在使用 gcc 编译器，而 Xcode 5 不再存在。

Answer 2

我在今天的一个旧项目中发现了类似的东西。发生的事情是我的项目中有一个子项目，并且没有设置为 llvm5。

您可能希望在您的目录中进行搜索以找到指定 llvm 4.2 的文件，如下所示：

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;

如果是这种情况，请尝试更新该子项目或完全删除它，看看您是否至少可以清理您的构建。

希望这可以帮助。

Answer 3

首先，如果您使用虚拟机，如果不检查您的文件，它可能没有权限访问您的项目，这可能是问题也许您错过了任何文件？