So I have 0 programming experience, and I'm trying to figure out how to do this. I replace the code, but I keep getting an error every time I try to build. clang:

"error: no such file or directory: '/Users/alexfreund/Downloads/desmume-0.9.8/src/cocoa/../metaspu/SoundTouch/AAFilter.cpp'
clang: error: no input files
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1"

do you have any suggestions?