KeyError: 'ann_info'

[odd2022]

Hello, I am trying to prepare my dataset by typing the cmd:

python tools/create_data.py --root-path ./data/nuscenes --out-dir ./data/nuscenes --extra-tag nuscenes

as suggested in the tutorial but i get this error:

[>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] 81/81, 7.8 task/s, elapsed: 10s, ETA: 0s Create GT Database of NuScenesDataset [ ] 0/323, elapsed: 0s, ETA:{'sample_idx': 'ca9a282c9e77460f8360f564131a8af5', 'pts_filename': './data/nuscenes/samples/LIDAR_TOP/n015-2018-07-24-11-22-45+0800__LIDAR_TOP__1532402927647951.pcd.bin', 'sweeps': [], 'timestamp': 1532402927.647951, 'img_fields': [], 'bbox3d_fields': [], 'pts_mask_fields': [], 'pts_seg_fields': [], 'bbox_fields': [], 'mask_fields': [], 'seg_fields': [], 'box_type_3d': <class 'mmdet3d.core.bbox.structures.lidar_box3d.LiDARInstance3DBoxes'>, 'box_mode_3d': <Box3DMode.LIDAR: 0>} Traceback (most recent call last): File "tools/create_data.py", line 267, in nuscenes_data_prep( File "tools/create_data.py", line 89, in nuscenes_data_prep create_groundtruth_database(dataset_name, root_path, info_prefix, File "HoP/tools/data_converter/create_gt_database.py", line 241, in create_groundtruth_database example = dataset.pipeline(input_dict) File "HoP/mmdet3d/datasets/pipelines/compose.py", line 49, in call data = t(data) File "HoP/mmdet3d/datasets/pipelines/loading.py", line 682, in call results = self._load_bboxes_3d(results) File "HoP/mmdet3d/datasets/pipelines/loading.py", line 577, in _load_bboxes_3d results['gt_bboxes_3d'] = results['ann_info']['gt_bboxes_3d'] KeyError: 'ann_info'

Has anyone faced this problem yet ? Thank you