`zhao@zhao-pc:~/catkin_ws/src/VINS-Mono-master$ roslaunch vins_estimator euroc.launch ... logging to /home/zhao/.ros/log/9a2cdafc-2333-11eb-a6fc-fc4596424543/roslaunch-zhao-pc-17125.log Checking log directory for disk usage. This may take a while. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://zhao-pc:33983/

SUMMARY

PARAMETERS

/feature_tracker/config_file: /home/zhao/catkin...
/feature_tracker/vins_folder: /home/zhao/catkin...
/pose_graph/config_file: /home/zhao/catkin...
/pose_graph/skip_cnt: 0
/pose_graph/skip_dis: 0.0
/pose_graph/visualization_shift_x: 0
/pose_graph/visualization_shift_y: 0
/rosdistro: melodic
/rosversion: 1.14.9
/vins_estimator/config_file: /home/zhao/catkin...
/vins_estimator/vins_folder: /home/zhao/catkin...

NODES / feature_tracker (feature_tracker/feature_tracker) pose_graph (pose_graph/pose_graph) vins_estimator (vins_estimator/vins_estimator)

auto-starting new master process[master]: started with pid [17135] ROS_MASTER_URI=http://localhost:11311

setting /run_id to 9a2cdafc-2333-11eb-a6fc-fc4596424543 process[rosout-1]: started with pid [17146] started core service [/rosout] ERROR: cannot launch node of type [feature_tracker/feature_tracker]: Cannot locate node of type [feature_tracker] in package [feature_tracker]. Make sure file exists in package path and permission is set to executable (chmod +x) process[vins_estimator-3]: started with pid [17153] ERROR: cannot launch node of type [pose_graph/pose_graph]: Cannot locate node of type [pose_graph] in package [pose_graph]. Make sure file exists in package path and permission is set to executable (chmod +x)

When I launch vins_estimator euroc.bash on Ubutu18.04 with Ros melodic publish version, there comes a puzzling issue that it can't launch the node of type [feature ],[pose_graph ] , respectively. So, I think there must be the problem with the feature_tracker and pose_graph which haven't been compiled.So , i go to compile them ,but unfortunately , I found that in the CMakeList ,the camera_model has been included, but it seems like there is not a package called camera_model in Ros-package list . What should i do , thanks in advance .