使用qt+ros調用攝像頭遇到的問題

1. 當使用攝像頭遇到如下問題：[usb_cam-1] process has died [pid 12288, exit code 127, cmd /opt/ros/indigo/lib/usb_cam/usb_cam_node __name:=usb_cam __log:=/home/sanstyle/.ros/log/783945ac-c7e3-11e6-bddb-4437e6444bf6/usb_cam-1.log].
   log file: /home/sanstyle/.ros/log/783945ac-c7e3-11e6-bddb-4437e6444bf6/usb_cam-1*.log

 

可能是ros-indigo-usb-cam的問題，需要先卸載后再安裝

sudo apt-get remove ros-indigo-usb-cam

sudo apt-get install ros-indigo-usb-cam