When I run visualization command, an error occured.

[having-salt]

I first ran:
python save.py checkpoint=/home/qzh/DeFlow/checkpoints/deflow_best.ckpt dataset_path=/home/qzh/DeFlow/data/av2/preprocess_v2/sensor/val
and it showed:
We already write the flow_est into the dataset, please run following commend to visualize the flow. Copy and paste it to your terminal: python tools/visualization.py --res_name 'deflow_best' --data_dir /home/qzh/DeFlow/data/av2/preprocess_v2/sensor/val Enjoy! ^v^ ------
so I ran this command, then, an error occured.
File "tools/visualization.py", line 114, in
fire.Fire(vis)
File "/home/qzh/anaconda3/envs/deflow/lib/python3.8/site-packages/fire/core.py", line 135, in Fire
component_trace = _Fire(component, args, parsed_flag_args, context, name)
File "/home/qzh/anaconda3/envs/deflow/lib/python3.8/site-packages/fire/core.py", line 468, in _Fire
component, remaining_args = _CallAndUpdateTrace(
File "/home/qzh/anaconda3/envs/deflow/lib/python3.8/site-packages/fire/core.py", line 684, in _CallAndUpdateTrace
component = fn(*varargs, **kwargs)
File "tools/visualization.py", line 73, in vis
opt.background_color = np.asarray([80/255, 90/255, 110/255])
AttributeError: 'NoneType' object has no attribute 'background_color'

[Kin-Zhang]

Could you check your open3d version, it must >=0.18.0

[having-salt]

import open3d
open3d.version
'0.18.0'
Thanks for your reply, I have checked.

[having-salt]

but the error still exists

[Kin-Zhang]

I don’t think it’s model or data problem but open3d didn’t work on your platform. Could you please check in open3d repo issue if someone have same issue?

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