After solving the SSH authenticity problem another error pop-up (Repository not found.) Failed to clone repository:  'git@github.com:lynxmotionbeta/LSS-Arduino-2.git', i have looked for that repository but i found that the repository needed might be from git@github.com:lynxmotionbeta/LSS_Library_Arduino.git , after replasing the repositories in file (BuildLyxmotionLSS.cmake) unfortanatly another error occurred fatal: invalid reference: feature/lss-bus-refactor this error prevents  lss_ros2_control from building , it reaches 50% then it fail.  i will provide you with the two error messages hoping that you can assist me with this issue );  :

#First Error ends at lin 50 

jetson@nano:~/LSS-ROS2-Arms$ source /opt/ros/galactic/setup.bash
jetson@nano:~/LSS-ROS2-Arms$ export IGNITION_VERSION=edifice
jetson@nano:~/LSS-ROS2-Arms$ colcon build --symlink-install
Starting >>> lss_arm_description
Starting >>> lss_ros2_control
Finished <<< lss_arm_description [0.76s]                                  
Starting >>> lss_arm_moveit
Finished <<< lss_arm_moveit [0.57s]                                  
Starting >>> lss_ign_moveit_example
--- stderr: lss_ros2_control                                               
Cloning into 'lynxmotion-lss'...
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Cloning into 'lynxmotion-lss'...
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Cloning into 'lynxmotion-lss'...
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
CMake Error at /home/jetson/LSS-ROS2-Arms/build/lss_ros2_control/lynxmotion-lss/tmp/lynxmotion-lss-gitclone.cmake:31 (message):
  Failed to clone repository:
  'git@github.com:lynxmotionbeta/LSS-Arduino-2.git'


make[2]: *** [CMakeFiles/lynxmotion-lss.dir/build.make:91: lynxmotion-lss/src/lynxmotion-lss-stamp/lynxmotion-lss-download] Error 1
make[1]: *** [CMakeFiles/Makefile2:134: CMakeFiles/lynxmotion-lss.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
---
Failed   <<< lss_ros2_control [13.4s, exited with code 2]
Aborted  <<< lss_ign_moveit_example [45.9s]                                  

Summary: 2 packages finished [49.0s]
  1 package failed: lss_ros2_control
  1 package aborted: lss_ign_moveit_example
  1 package had stderr output: lss_ros2_control
  1 package not processed
jetson@nano:~/LSS-ROS2-Arms$ 


# Second Error :


jetson@nano:~/LSS-ROS2-Arms$ colcon build --symlink-install
Starting >>> lss_arm_description
Starting >>> lss_ros2_control
Finished <<< lss_arm_description [0.64s]                                  
Starting >>> lss_arm_moveit
Finished <<< lss_arm_moveit [0.47s]                                      
Starting >>> lss_ign_moveit_example
Finished <<< lss_ign_moveit_example [0.72s]                              
Starting >>> lss_arm
Finished <<< lss_arm [0.88s]                                             
--- stderr: lss_ros2_control                             
Cloning into 'lynxmotion-lss'...
fatal: invalid reference: feature/lss-bus-refactor
CMake Error at /home/jetson/LSS-ROS2-Arms/build/lss_ros2_control/lynxmotion-lss/tmp/lynxmotion-lss-gitclone.cmake:40 (message):
  Failed to checkout tag: 'feature/lss-bus-refactor'


make[2]: *** [CMakeFiles/lynxmotion-lss.dir/build.make:91: lynxmotion-lss/src/lynxmotion-lss-stamp/lynxmotion-lss-download] Error 1
make[1]: *** [CMakeFiles/Makefile2:134: CMakeFiles/lynxmotion-lss.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
---
Failed   <<< lss_ros2_control [3.72s, exited with code 2]

Summary: 4 packages finished [5.46s]
  1 package failed: lss_ros2_control
  1 package had stderr output: lss_ros2_control
jetson@nano:~/LSS-ROS2-Arms$ 

# Old error with same proble the only diffrence i was working on another work space  ros2_ws


jetson@nano:~/ros2_ws$ colcon build --symlink-install
Starting >>> lss_arm_description
Starting >>> lss_ros2_control
Finished <<< lss_arm_description [0.69s]                                  
Starting >>> lss_arm_moveit
Finished <<< lss_arm_moveit [0.51s]                                  
Starting >>> lss_ign_moveit_example                  
Finished <<< lss_ign_moveit_example [0.78s]                          
Starting >>> lss_arm
Finished <<< lss_arm [0.49s]                                                      
--- stderr: lss_ros2_control                               
Cloning into 'lynxmotion-lss'...
Already on 'master'
CMake Error: The source directory "/home/jetson/ros2_ws/build/lss_ros2_control/lynxmotion-lss/src/lynxmotion-lss" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
make[2]: *** [CMakeFiles/lynxmotion-lss.dir/build.make:107: lynxmotion-lss/src/lynxmotion-lss-stamp/lynxmotion-lss-configure] Error 1
make[1]: *** [CMakeFiles/Makefile2:134: CMakeFiles/lynxmotion-lss.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
---
Failed   <<< lss_ros2_control [12.4s, exited with code 2]

Summary: 4 packages finished [14.2s]
  1 package failed: lss_ros2_control
  1 package had stderr output: lss_ros2_control
jetson@nano:~/ros2_ws$