problem with initial mesh

[bubuBlack]

hi,thanks for your work. When I run with my own data, I have some problems with initial meshes. I created a obj farmat cube as initial mesh,but I met error as shown below:

device: cuda:0
Traceback (most recent call last):
File "main.py", line 19, in
mesh = Mesh(opts.initial_mesh, device=device, hold_history=True)
File "/home/abc/point2mesh/models/layers/mesh.py", line 24, in init
self.vs, self.faces = load_obj(file)
File "/home/abc/point2mesh/utils.py", line 69, in load_obj
assert len(face_vertex_ids) == 3
AssertionError

I want to know how to generate mesh data in the correct format?
Thanks again!