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I had the same issue on Jetson Xavier on ubuntu 20.04 while it was working well on amd PC with same linux version. Importing cv2 before cv_bridge solved it for me.

import cv2
from cv_bridge import CvBridge, CvBridgeError

I had the same issue on Jetson Xavier on ubuntu 20.04 while it was working well on amd PC with same linux version. version.

Importing cv2 before cv_bridge solved it for me.

import cv2
from cv_bridge import CvBridge, CvBridgeError