No such file or directory: '/content/mmdetection3d/../_base_/datasets/kitti-3d-3class.py'

Prerequisite

[X] I have searched Issues and Discussions but cannot get the expected help.
[X] I have read the FAQ documentation but cannot get the expected help.
[X] The bug has not been fixed in the latest version (dev-1.x) or latest version (dev-1.0).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

main branch https://github.com/open-mmlab/mmdetection3d

Environment

Google Colab, T4 GPU Runtime

Reproduces the problem - code sample

According to [https://mmdetection3d.readthedocs.io/en/latest/get_started.html], I installed open-mmdetection3d on colab.

However, when I use

from mmdet3d.apis import init_model, inference_detector

config_file = 'pointpillars_hv_secfpn_8xb6-160e_kitti-3d-car.py'
checkpoint_file = 'hv_pointpillars_secfpn_6x8_160e_kitti-3d-car_20220331_134606-d42d15ed.pth'
model = init_model(config_file, checkpoint_file)
inference_detector(model, 'demo/data/kitti/000008.bin')

python demo/pcd_demo.py demo/data/kitti/000008.bin pointpillars_hv_secfpn_8xb6-160e_kitti-3d-car.py hv_pointpillars_secfpn_6x8_160e_kitti-3d-car_20220331_134606-d42d15ed.pth --show

It gives the following error:

Traceback (most recent call last):
  File "/content/mmdetection3d/demo/pcd_demo.py", line 60, in <module>
    main(args)
  File "/content/mmdetection3d/demo/pcd_demo.py", line 34, in main
    model = init_model(args.config, args.checkpoint, device=args.device)
  File "/content/mmdetection3d/mmdet3d/apis/inference.py", line 59, in init_model
    config = Config.fromfile(config)
  File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 456, in fromfile
    cfg_dict, cfg_text, env_variables = Config._file2dict(
  File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 940, in _file2dict
    raise e
  File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 882, in _file2dict
    _cfg_dict, _cfg_text, _env_variables = Config._file2dict(
  File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 838, in _file2dict
    if lazy_import is None and Config._is_lazy_import(filename):
  File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 1651, in _is_lazy_import
    with open(filename, encoding='utf-8') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/content/mmdetection3d/../_base_/datasets/kitti-3d-3class.py'

I can not find ../_base_/datasets/kitti-3d-3class.py in the MMdetection3D repository. What do you suggest?

Reproduces the problem - command or script

python demo/pcd_demo.py demo/data/kitti/000008.bin pointpillars_hv_secfpn_8xb6-160e_kitti-3d-car.py hv_pointpillars_secfpn_6x8_160e_kitti-3d-car_20220331_134606-d42d15ed.pth --show

Reproduces the problem - error message

Traceback (most recent call last): File "/content/mmdetection3d/demo/pcd_demo.py", line 60, in main(args) File "/content/mmdetection3d/demo/pcd_demo.py", line 34, in main model = init_model(args.config, args.checkpoint, device=args.device) File "/content/mmdetection3d/mmdet3d/apis/inference.py", line 59, in init_model config = Config.fromfile(config) File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 456, in fromfile cfg_dict, cfg_text, env_variables = Config._file2dict( File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 940, in _file2dict raise e File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 882, in _file2dict _cfg_dict, _cfg_text, _env_variables = Config._file2dict( File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 838, in _file2dict if lazy_import is None and Config._is_lazy_import(filename): File "/usr/local/lib/python3.10/dist-packages/mmengine/config/config.py", line 1651, in _is_lazy_import with open(filename, encoding='utf-8') as f: FileNotFoundError: [Errno 2] No such file or directory: '/content/mmdetection3d/../base/datasets/kitti-3d-3class.py

Additional information

No response

open-mmlab / mmdetection3d