use_case_1 file error.

[M-SAAD-ALI]

(hw2vec_new) C:\Users\PMLS\hw2vec>python use_case_1.py
Traceback (most recent call last):
File "use_case_1.py", line 33, in
graph_emb = use_case_1(cfg, hw_design_dir_path,
File "use_case_1.py", line 10, in use_case_1
hw_design_path = hw2graph.preprocess(hw_design_dir_path)
File "C:\Users\PMLS\hw2vec\hw2vec\hw2graph.py", line 481, in preprocess
self.flatten(verilog_dir, flattened_hw_path)
File "C:\Users\PMLS\hw2vec\hw2vec\hw2graph.py", line 403, in flatten
with open(flattened_hw_path, "w") as outfile:
I have installed all libraries and am running this on Windows. I'm encountering errors when running the first example, but the file directory appears to be correct. Please advise. Thanks.