Can't Run

Installed everything as per point one of https://www.instructables.com/id/Raspberry-Pi-Sequencer/ but when I try to run it it gives me this error message

Traceback (most recent call last):
File "/home/pi/pythonsamplessequencer/sampSeq.py", line 158, in
paths[iya] = (dir + extension)
IndexError: list assignment index out of range

Everything so far has worked like a charm and I can't wait to use this, thanks for putting this kind of incredible thing out here!

[manchandajayant]

Had the same error, It seems to be the issue of appending to an empty array.
Change the line to paths.append(dir + extension) instead of paths[iya] = (dir + extension)