I have a simple Hello World! app. It seems to run on my Android Device and emulator. If I want to run it on my iOS simulator the build fails. I have Xcode Version 7.2.1 installed.
Error message:
[ERROR] : ** BUILD FAILED **
[ERROR] : The following build commands failed:
[ERROR] : CompileC build/Intermediates/HelloWorld.build/Debug- iphonesimulator/HelloWorld.build/Objects-normal/x86_64/MediaModule.o Classes/MediaModule.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
[ERROR] : (1 failure)
Since you specified you use TiSDK 6.0.1 and xcode 7.2.1 you have an incompatible combination.
Always look at the Titanium Compatibility Matrix for exactly this reason. In the xCode section it says you need at least xcode 8.0 for it to work. If you want to stick with xcode 7 you can go up to Titanium 5.5