Xcode更新到Xcode5，一運行報如下錯誤：
Unsupported compiler 'com.apple.compilers.llvmgcc42' selected for architecture 'armv7'或'armv7s'
解決方案：
Change your compiler for C/C++/ObjectiveC Go to Build Settings->Build OPtions->compiler for C/C++/ObjectiveC; select Default(Apple LLVM5.0)