Yes I did run both those setup files. As I said I have had absolutely no trouble building any build U or not prior to 0.153 with my current setup.
To rule things out, I changed my compiling batch file to exactly as you have it set and I got the exact same error and it errored out in the same spot. I can complie command-line just fine on my clean source directory. When I add-in the MAMEUI files and try to compile the UI version I get the error. I am totally at a loss as to what is happening.