Problem encountered in generating data format pkl

[MAI-KOKO]

When I run this instaruction : python -m pcdet.datasets.kitti.kitti_dataset create_kitti_infos tools/cfgs/dataset_configs/kitti_dataset.yaml
RuntimeWarning: 'pcdet.datasets.kitti.kitti_dataset' found in sys.modules after import of package 'pcdet.datasets.kitti', but prior to execution of 'pcdet.datasets.kitti.kitti_dataset';