Trouble CSI camera on jetson Nano

I try to use the Raspicam V2.1 with the jetsonNano as csi camera. I use ubuntu 18.04 and opencv 4.7 python 3.8
It work fine with gst-launch-1.0, and nvgstcapture-1.0. But I always get the following message “unable to open the camera” when I use or
I even try, jetcam but it is worse " could not initialize the camera"
Could you help me?


I’d suspect that the opencv version installed for your python3.8 has been built without gstreamer support.
What gives:

python3 -c 'import cv2; print(cv2.getBuildInformation())'

# In my case with JP5 on Orin I get the following
  Video I/O:
    GStreamer:                   YES (1.16.3)

You are right I forgot to set the gstreamer option to ON.

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