ERROR: Frame with a timestamp older than previous frame detected!
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Ailce88899 commented
When running a USB monocular camera, there is image output, but there are always indirect errors:
ERROR: Frame with a timestamp older than previous frame detected!
Ailce88899 commented
I am using the USB_cam plug-in to drive the camera, and replacing it with the v4l2_camera plug-in to drive the camera will solve the problem
ROS1:USB_cam ROS2:v4l2_camera