Hi, I have a problem when I try to calibrate camera in ros:

when i use comend rostopic list i can see only:

/rosout /rosout_agg

and when i put rosrun cameracalibration cameracalibrator.py --size 8x6 --square 0.108 image:=/camera/imageraw camera:=/camera

i saw Waiting for service /camera/setcamerainfo ...

Service not found How can I solve it?