There is no .csv file when prepare the scannet dataset

[x505367603]

in graph_level_generation.py--->quadric_error_metric--->csv2npy:
FileNotFoundError: [Errno 2] No such file or directory: 'Data/scannet_qem_train_rooms/scannet/curr_mesh.csv'
I debugged the code and couldn't find the.csv file in the output directory，only a curr_mesh.ply file.
`def quadric_error_metric(curr_file_path, ratio, old_vertices):
os.system(f"tridecimator "
f"{curr_file_path} {curr_file_path} {ratio} -On -C > /dev/null")

mesh = open3d.read_triangle_mesh(curr_file_path)
if not mesh.has_vertices():
    raise QEMError('no vertices left')
coords = np.asarray(mesh.vertices)
edges_list = edges_from_faces(np.asarray(mesh.triangles))
edge_out = []
for key, group in enumerate(edges_list):
    for elem in group:
        edge_out.append([key, elem])

reverse_trace = csv2npy(curr_file_path.replace(
    '.ply', '.csv'), old_vertices=old_vertices, new_vertices=coords)

return coords, edge_out, reverse_trace`