Getting a path related error?

[noobtoob4lyfe]

Hi, I keep getting this error when I'm positive that my paths in my arguments are correct. Could this be a bug? Does this code not work on windows?

Traceback (most recent call last):
File "run_mvs.py", line 179, in
optimize(args.input_dir, args.src_img, args.output_dir)
File "run_mvs.py", line 25, in optimize
print("ERROR! File %s does not exist in directory %d. Please make sure you entered the name correctly." % (src_img, os.path.abspath(base_dir)))
TypeError: %d format: a number is required, not str