There is a bug in line 1218 of save.py
command = f"./{quantize_location} {full_precision_location} "
f"{final_location} {quant_method} {n_cpus}"
The quantize_Location here is already an absolute path. No need to add./, Will cause the command to not be found

/bin/sh: 1: .//usr/local/bin/llama-quantize: not found