错误提示 Unsupported compiler 'com.apple.compilers.llvmgcc42' selected for architecture 'i386'

转自http://blog.csdn.net/cyuyanenen/article/details/51444974

警告提示：Invalid C/C++ compiler in target CoreTextMagazine: com.apple.compilers.llvmgcc42

错误提示：Unsupported compiler ‘com.apple.compilers.llvmgcc42’ selected for architecture ‘i386’ 
Unsupported compiler ‘com.apple.compilers.llvmgcc42’ selected for architecture ‘x86_64’

原因分析：工程使用的编译器版本过低所致，修改编译器版本至最新版本。

解决方案： 
Build Settings->Build OPtions->compiler for C/C++/ObjectiveC 

选择： Default compiler (Apple LLVM 7.0)