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1 | initial version |
Have you checked that the topic is being published (rostopic hz)?
2 | No.2 Revision |
Have you checked that the topic is being published (rostopic hz)?
Edit: What nodes other than image_view are you running? From your response, I'd guess that you either forgot to start whatever node you're using to publish camera images, or it's failing. rqt_graph may help you here.