Unable to execute prepare_scannet.py on colab

[TrendonauT]

hi @daveredrum

I'm getting the following error on executing the command below on colab terminal:

Command:
/content/D3Net/data/scannet# python prepare_scannet.py

Error:
data split: train
scene0000_00
Traceback (most recent call last):
File "prepare_scannet.py", line 222, in
process_all_scans(cfg)
File "prepare_scannet.py", line 205, in process_all_scans
process_one_scan(scan, cfg)
File "prepare_scannet.py", line 181, in process_one_scan
mesh, aligned_mesh, sem_labels, instance_ids, instance_bboxes, aligned_instance_bboxes = export(scan, cfg)
File "prepare_scannet.py", line 146, in export
mesh = read_mesh_file(mesh_file) #（num_verts, 9) xyz+rgb+normal
File "prepare_scannet.py", line 30, in read_mesh_file
mesh = scannet_utils.read_mesh_vertices_rgb_normal(mesh_file) #（num_verts, 9) xyz+rgb+normal
File "/content/D3Net/data/scannet/scannet_utils.py", line 119, in read_mesh_vertices_rgb_normal
assert(os.path.isfile(filename))
AssertionError

Is it possible that I'm doing something incorrectly in

I'm not entirely sure what is to be done here