Captured stderr output: error: name 'shoulder_offset' is not defined when evaluating expression 'shoulder_offset'

[louaysahbani]

when i follow you latest video in "Intégration de la pince Robotiq sur UR5 dans ROS2 – De GitHub à l'installation complète dans Gazebo" i cloned the repo and tried to launch "view_ur5_camera_gripper.launch.py"
but i got this error ,
louaysahbani27@louay:~/yt_ws$ ros2 launch ur_yt_sim view_ur5_camera_gripper.launch.py
[INFO] [launch]: All log files can be found below /home/louaysahbani27/.ros/log/2025-07-28-19-01-21-115620-louay-27573
[INFO] [launch]: Default logging verbosity is set to INFO
[ERROR] [launch]: Caught exception in launch (see debug for traceback): executed command failed. Command: /opt/ros/humble/bin/xacro /home/louaysahbani27/yt_ws/install/ur_yt_sim/share/ur_yt_sim/urdf/ur5_camera_gripper.urdf.xacro safety_limits:=true safety_pos_margin:=0.15 safety_k_position:=20 name:=ur ur_type:=ur5 tf_prefix:=""
Captured stderr output: error: name 'shoulder_offset' is not defined
when evaluating expression 'shoulder_offset'
when instantiating macro: ur_robot (/home/louaysahbani27/yt_ws/install/ur_yt_sim/share/ur_yt_sim/urdf/ur5_macro.xacro)
in file: /home/louaysahbani27/yt_ws/install/ur_yt_sim/share/ur_yt_sim/urdf/ur5_camera_gripper.urdf.xacro
can you fix it in your latest repo?