report errors:

Unable to open camera calibration file [/home/hri/.ros/camera_ info/head_ camera.yaml ]

reference resources:

https://github.com/ros-drivers/usb_ cam/issues/53
https://answers.ros.org/question/217806/rospack-error-package-image_ view-not-found/

reason:

The main reason is that image is not installed_ View
ahaaha

terms of settlement:

sudo apt-get install ros-indigo-image-view