ImportError: No module named '_edgetpu_cpp_wrapper' about coral_usb_ros HOT 2 CLOSED

did you install python3-edgetpu?
it seems you install edgetpu with sudo pip or something because it is installed in /usr/local/lib/python3.8.

please follow the step written in readme.
https://github.com/jsk-ros-pkg/coral_usb_ros#edge-tpu-dependencies-installation

if you install apt-get install python3-edgetpu, edgetpu package can be found in /usr/lib/python3.
you can check the correct python installation in docker image jskrobotics/coral_usb_ros:noetic-latest.

$ docker run -it jskrobotics/coral_usb_ros:noetic-latest /bin/bash
root@b13ebf43a2b2:/# cd /usr/lib/python3/dist-packages/edgetpu/swig/
root@b13ebf43a2b2:/usr/lib/python3/dist-packages/edgetpu/swig# ls
__init__.py
_edgetpu_cpp_wrapper.cpython-35m-x86_64-linux-gnu.so
_edgetpu_cpp_wrapper.cpython-36m-x86_64-linux-gnu.so
_edgetpu_cpp_wrapper.cpython-37m-x86_64-linux-gnu.so
_edgetpu_cpp_wrapper.cpython-38-x86_64-linux-gnu.so
edgetpu_cpp_wrapper.py

from coral_usb_ros.

Thanks for your help again. I discovered that the library was installed in the correct place but wasn't being found. I fixed it by extending PYTHONPATH to include that directory. Then I got two more missing library errors that I fixed with:

sudo apt install ros-noetic-jsk-topic-tools
sudo apt install ros-noetic-jsk-recognition-msgs

I'm not sure how my system got into that state, but it's working now. Perhaps it happened because I followed the instructions on the Coral site for setup before finding your repo?

from coral_usb_ros.