ModuleNotFoundError: No module named 'ops.voxel_op'

[Hongsehyun]

Hello, I have this Error... While Running this code'python pre_process_kitti.py --data_root kitti'

my data path is 'kitti' and the error code is here.

File "C:\Users\sehye\anaconda3\envs\pointpillars\lib\site-packages\cumm\tensorview.py", line 20, in from cumm.core_cc import tensorview_bind

ModuleNotFoundError: No module named 'ops.voxel_op'

please help me...

[zhulf0804]

Hello, I have this Error... While Running this code'python pre_process_kitti.py --data_root kitti'

my data path is 'kitti' and the error code is here.

File "C:\Users\sehye\anaconda3\envs\pointpillars\lib\site-packages\cumm\tensorview.py", line 20, in from cumm.core_cc import tensorview_bind

ModuleNotFoundError: No module named 'ops.voxel_op'

please help me...

Hello, please refer to this issue https://github.com/zhulf0804/PointPillars/issues/3#issue-1296701172.

[Hongsehyun]

Thanks a lot!

but I have one more problem...! It seems to be a problem with the PATH.

My data file configuration is as follows.

kitti
    |- training
        |- calib (#7481 .txt)
        |- image_2 (#7481 .png)
        |- label_2 (#7481 .txt)
        |- velodyne (#7481 .bin)
        |- velodyne_reduced (#7481 .bin)
    |- testing
        |- calib (#7518 .txt)
        |- image_2 (#7518 .png)
        |- velodyne (#7518 .bin)
        |- velodyne_reduced (#7518 .bin)
    |- kitti_gt_database (# 19700 .bin)
    |- kitti_infos_train.pkl
    |- kitti_infos_val.pkl
    |- kitti_infos_trainval.pkl
    |- kitti_infos_test.pkl
    |- kitti_dbinfos_train.pkl

I configured PATH exactly the same as the PATH presented.

and the code I ran is as follows. python train.py --data_root kitti

but i got this Error code.

Do you know the solution? I'm sorry to keep asking. Thank you in advance!

[zhulf0804]

Hi, the same problem also occurred in this issue https://github.com/zhulf0804/PointPillars/issues/10#issuecomment-1215456455.

I doubt the path problem may be related to the OS (Ubuntu or Windows).

I'll check it using Windows OS later.

[Hongsehyun]

Ok Thanks!

I'll also try to proceed with Linux Ubuntu 18.04!

[zhulf0804]

Hi @Hongsehyun,

I find the reason for the above path problem. The path separator / and \ between Linux and Windows are different. The code has only been tested in Linux before.

So try the following 2 steps:

1. Replace all '/' with os.path.sep in pre_process_kitti.py, for example, '/'.join(lidar_path.split('/')[-3:]) -> os.path.sep.join(lidar_path.split(os.path.sep)[-3:])
2. Re-process KITTI dataset with python pre_process_kitti.py --data_root your_path_to_kitti

(Windows is not available to me now. If there are any problems about the above steps, please let me know.)

Best.

[Hongsehyun]

Thank you for the explanation!

I'll try it.