The error when I run train.py

[Richard-LYF]

when I run train.py under tools, I encounter this error. I wonder how to solve this.

Traceback (most recent call last):
File "train.py", line 198, in
main()
File "train.py", line 112, in main
total_epochs=args.epochs
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/init.py", line 51, in build_dataloader
logger=logger,
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/kitti/kitti_dataset.py", line 23, in init
dataset_cfg=dataset_cfg, class_names=class_names, training=training, root_path=root_path, logger=logger
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/dataset.py", line 32, in init
) if self.training else None
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/augmentor/data_augmentor.py", line 23, in init
cur_augmentor = getattr(self, cur_cfg.NAME)(config=cur_cfg)
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/augmentor/data_augmentor.py", line 31, in gt_sampling
logger=self.logger
File "/home/yifan/Code/OpenPCDet/pcdet/datasets/augmentor/database_sampler.py", line 21, in init
with open(str(db_info_path), 'rb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/yifan/Code/SESS/3DSSD-pytorch-openPCDet-main/data/kitti/kitti_dbinfos_train.pkl'

Does anyone have any idea?

[qiqihaer]

Please follow the instructions of OpenPCDet to prepare the KITTI's data