[head_camera] does not match name /camera/image_raw

I have the following launch file to use visp_auto_track with 2 cam's However, when I run this, I get the warnings: [ INFO] [1515587518.127209475]: camera calibration URL: package://visp_auto_tracker/models/calibration_right.ini [ WARN] [1515587518.127562984]: [head_camera] does not match name /camera/image_raw in file /home/jeroen/catkin_ws/src/vision_visp/visp_auto_tracker/models/calibration_right.ini [ INFO] [1515587518.127615190]: Starting 'head_camera' (/dev/video2) at 640x480 via mmap (yuyv) at 30 FPS [ INFO] [1515587518.217836910]: camera calibration URL: package://visp_auto_tracker/models/calibration_left.ini [ WARN] [1515587518.218137831]: [head_camera] does not match name /camera/image_raw in file /home/jeroen/catkin_ws/src/vision_visp/visp_auto_tracker/models/calibration_left.ini [ INFO] [1515587518.218179513]: Starting 'head_camera' (/dev/video1) at 640x480 via mmap (yuyv) at 30 FPS