Openag usb_cam Error (webcam: expected picture but didn't get it...)

#1

I’ve been trying to set up the openag_brain v2 on my rPi.
I’ve successfully been able to set up the ui as well.

However, I’m stuck at trying to set up a camera feed using the usb_cam node.

The error I’m getting is simply

webcam: expected picture but didn't get it...

Interestingly, when I run rosparam set usb_cam/pixel_format yuyv followed by rosrun usb_cam usb_cam_node, the error doesn’t appear.

However, when I run rosrun openag_brain main personal_food_computer_v2.launch after setting rosparam set usb_cam/pixel_format yuyv, I still get webcam: expected picture but didn't get it....

I thought this was a pixel format issue, but even after setting it to yuvy it still gives the same error.

Thanks,
Pratyush

#2

Interesting, I’ve never seen that error before.

Are you using the same camera that we’re using?
http://a.co/cvQFElw

If not, can you link us to the camera you’re using, as well as the particular version of openag_brain you’re on?

Thanks a bunch!!