Meet a problem when running Nuscenes data preparation script.

Environment:

Python = 3.8
PyTorch = 1.10.1
tqdm = 4.64.0
torchpack = 0.3.1
mmcv-full = 1.4.0
mmdet = 2.20.0
mmdet3d = 0.0.0
torchvision = 0.11.2

Description: After I prepare the develop environment and download the Nuscenes original dataset, I try to run the command:python tools/create_data.py nuscenes --root-path ./data/nuscenes --out-dir ./data/nuscenes --extra-tag nuscenes, but I meet an error :Traceback (most recent call last): File "tools/create_data.py", line 3, in <module> from tools.data_converter import nuscenes_converter as nuscenes_converter File "/home/user/BEVFusion/tools/data_converter/nuscenes_converter.py", line 13, in <module> from mmdet3d.core.bbox.box_np_ops import points_cam2img File "/home/user/BEVFusion/mmdet3d/core/__init__.py", line 2, in <module> from .bbox import * # noqa: F401, F403 File "/home/user/BEVFusion/mmdet3d/core/bbox/__init__.py", line 3, in <module> from .iou_calculators import (AxisAlignedBboxOverlaps3D, BboxOverlaps3D, File "/home/user/BEVFusion/mmdet3d/core/bbox/iou_calculators/__init__.py", line 1, in <module> from .iou3d_calculator import ( File "/home/user/BEVFusion/mmdet3d/core/bbox/iou_calculators/iou3d_calculator.py ", line 5, in <module> from ..structures import get_box_type File "/home/user/BEVFusion/mmdet3d/core/bbox/structures/__init__.py", line 1, in <module> from .base_box3d import BaseInstance3DBoxes File "/home/user/BEVFusion/mmdet3d/core/bbox/structures/base_box3d.py", line 5, in <module> from mmdet3d.ops.iou3d import iou3d_cuda File "/home/user/BEVFusion/mmdet3d/ops/__init__.py", line 34, in <module> from .roiaware_pool3d import ( File "/home/user/BEVFusion/mmdet3d/ops/roiaware_pool3d/__init__.py", line 1, in <module> from .points_in_boxes import points_in_boxes_batch, points_in_boxes_cpu, points_in_boxes_gpu File "/home/user/BEVFusion/mmdet3d/ops/roiaware_pool3d/points_in_boxes.py", line 3, in <module> from . import roiaware_pool3d_ext ImportError: /home/user/BEVFusion/mmdet3d/ops/roiaware_pool3d/roiaware_pool3d_ext. cpython-38-x86_64-linux-gnu.so: undefined symbol: _ZN3c1015SmallVectorBaseIjE8grow_podEPvmm . Many thanks for your kindly help!