https://github.com/EuropeanRoverChallenge/ERC-Remote-Maintenance-Sim 使用此链接，当我尝试打开模拟时，它可以打开但有几个错误：
Traceback (most recent call last):
File "/home/leopard/catkin_ws/src/UR3_sim/ur3_sim/scripts/gripper.py", line 68, in <module>
main()
File "/home/leopard/catkin_ws/src/UR3_sim/ur3_sim/scripts/gripper.py", line 57, in main
gripper = GripperController()
File "/home/leopard/catkin_ws/src/UR3_sim/ur3_sim/scripts/gripper.py", line 33, in __init__
self.move_group = MoveGroupPythonInteface()
File "/home/leopard/catkin_ws/src/UR3_sim/ur3_sim/scripts/gripper.py", line 16, in __init__
move_group = moveit_commander.MoveGroupCommander("gripper")
File "/opt/ros/noetic/lib/python3/dist-packages/moveit_commander/move_group.py", line 66, in __init__
self._g = _moveit_move_group_interface.MoveGroupInterface(
RuntimeError: Unable to connect to move_group action server 'move_group' within allotted time (5s)
和
[ERROR] [1678561364.684790173]: Unsupported Gazebo ImageFormat
和
[gripper_control-12] process has died [pid 4979, exit code 1, cmd /home/leopard/catkin_ws/src/UR3_sim/ur3_sim/scripts/gripper.py __name:=gripper_control __log:=/home/leopard/.ros/log/4e581f8a-c041-11ed-9846-8b5f25219e9b/gripper_control-12.log].
log file: /home/leopard/.ros/log/4e581f8a-c041-11ed-9846-8b5f25219e9b/gripper_control-12*.log
我怎样才能解决这些问题？