"qrcamera" passed to lookupTransform argument target_frame does not exist.
$rosrun tf tf_echo qrcamera markerhttp://docs.ros.org/indigo/api/tf2_ros/html/c++/classtf2__ros_1_1Buffer.html#acabbd72cae8f49fb3b6ede3be7e34c55#include <ros/ros.h>#include <tf2_ros/t...
