Trouble with sample project template (Autoconf problem?)

Hi, Trevor
        >>Makefile.common:63: /Users/twharmon/Development/LLVM/llvm//
        >>Makefile.config: No such file or directory
        >>make: *** No rule to make target `/Users/twharmon/Development/LLVM/
        >>llvm//Makefile.config'. Stop.

    this error source from your makefile.common file,you identify an
wrong objdir of LLVM, please configure with the prefix of
--with-llvmobj=<directory> to identify the correct directory of your
llvm obj dir,that is.