我完全按照你的教程使用

[ambglh]

运行到这一步rosrun robot_sim camera_calibration报错，我确定已经加了权限
[rosrun] Couldn't find executable named camera_calibration below /home/ghm/ghm_robot_ws/src/robot_sim/experiment
[rosrun] Found the following, but they're either not files,
[rosrun] or not executable:
[rosrun] /home/ghm/ghm_robot_ws/src/robot_sim/experiment/camera_calibration
但是报错了