module 'genpy' has no attribute 'Message'

[PaulBigiel]

When trying to launch the conversion script to nuscenes, I get the following error:

(tum-traffic-dataset-dev-kit) paul@paul-B450NH:~/tum-traffic-dataset-dev-kit$ python src/label_conversion/conversion_openlabel_to_nuscenes.py --root-path r02_sequences_split \ --out-dir innuscenes
Traceback (most recent call last):
File "/home/paul/tum-traffic-dataset-dev-kit/src/label_conversion/conversion_openlabel_to_nuscenes.py", line 5, in
from pypcd import pypcd # solution to correctly installing this :dimatura/pypcd#28
File "/home/paul/miniconda3/envs/tum-traffic-dataset-dev-kit/lib/python3.9/site-packages/pypcd/pypcd.py", line 20, in
from sensor_msgs.msg import PointField
File "/home/paul/miniconda3/envs/tum-traffic-dataset-dev-kit/lib/python3.9/site-packages/sensor_msgs/msg/init.py", line 1, in
from ._BatteryState import *
File "/home/paul/miniconda3/envs/tum-traffic-dataset-dev-kit/lib/python3.9/site-packages/sensor_msgs/msg/_BatteryState.py", line 8, in
import std_msgs.msg
File "/home/paul/miniconda3/envs/tum-traffic-dataset-dev-kit/lib/python3.9/site-packages/std_msgs/msg/init.py", line 1, in
from ._Bool import *
File "/home/paul/miniconda3/envs/tum-traffic-dataset-dev-kit/lib/python3.9/site-packages/std_msgs/msg/_Bool.py", line 9, in
class Bool(genpy.Message):
AttributeError: module 'genpy' has no attribute 'Message'

Could it be that the conda installs a wrong version of genpy?

[Mike-7777777]

It's caused by wrong version of std_msgs. You do not need to install genpy, this will only cause more mess. You can fix it by install the ros-sensor-msgs:

conda install conda-forge::ros-sensor-msgs

You can try the dockerfile I wrote, I just pulled a resquest, you can check it #10.