different datatype between pointgrey_camera_driver and ar_track_alvar
I am trying to use a pointgrey camera to get image by using roslaunch pointgrey_camera_driver camera.launch and I want to use it to detect individual tags in ar_track_alvar. However there are some warning when everytime I run my launch file, and here is what shown in terminal So is there anyone who know how to solve? Thanks for your help~
What's the error?