Xcode 4.4 + OSX 10.5 as Development target = Clang LLVM 1.0 error
问题 Try this on the new Xcode 4.4: create a new project, a Cocoa application, and set the Development Target to OSX 10.5. If you run it, you'll get this error: Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1 Can someone explain this? I want to support Leopard too in my projects but I get this error if I try to execute them. 回答1: Make sure your project does not use ARC. ARC is not supported on Leopard. (It is supported on