[solved] Error executing ./run_sim.sh

[ChristophKin]

I run into following error executing the run_sim.sh script:

#All required rosdeps installed successfully
Starting >>> carter_navigation
Starting >>> custom_message
Starting >>> isaac_ros2_messages
Starting >>> isaac_ros_navigation_goal
Starting >>> isaac_tutorials
Finished <<< carter_navigation [0.31s]                                                                                                                                                         
Finished <<< isaac_tutorials [0.30s]
Finished <<< custom_message [0.46s]                                                                                                      
Finished <<< isaac_ros2_messages [0.47s]
Finished <<< isaac_ros_navigation_goal [1.05s]          

Summary: 5 packages finished [1.46s]
#All required rosdeps installed successfully
Starting >>> go2_interfaces
Finished <<< go2_interfaces [0.51s]                     

Summary: 1 package finished [0.69s]
Traceback (most recent call last):
  File "/home/username/go2_omniverse/main.py", line 25, in <module>
    from omniverse_sim import run_sim
  File "/home/username/go2_omniverse/omniverse_sim.py", line 7, in <module>
    from omni.isaac.lab.app import AppLauncher
ModuleNotFoundError: No module named 'omni.isaac.lab'

I have Ubuntu 22.04.4 LTS, Isaac Sim 4.1.0 and ROS2 Humble. Any suggestions? Does it only work with Isaac Sim 4.0?

[abizovnuralem]

Yes, currently it works only with Isaac Sim 4.0. Also be sure that before launching the script, don't activate the virtual env.

[ChristophKin]

I have now installed Isaac Sim 4.0 parallel to 4.1.0. Reinstalled Isaac Lab and also cloned go2_omniverse new. When I execute the run_sim.sh script I still get the same error. It seems like there is a missing link to Isaac Lab because it cant find the module.

[abizovnuralem]

Can you refer to this, please? https://github.com/abizovnuralem/go2_omniverse/issues/28

[ChristophKin]

I have read the other issue but it is a bit different I think. The colcon build runs successfully on my machine. However only the last command in the script python main.py --robot_amount 1 --robot go2 produces the error

Traceback (most recent call last):
  File "/home/username/go2_omniverse/main.py", line 25, in <module>
    from omniverse_sim import run_sim
  File "/home/username/go2_omniverse/omniverse_sim.py", line 7, in <module>
    from omni.isaac.lab.app import AppLauncher
ModuleNotFoundError: No module named 'omni.isaac.lab'

Also if I execute the commands step by step.

[abizovnuralem]

It seems to me that your conda env does have isaacLab installed, Have you tried to execute the empty example from the isaacLab instruction? Does it work for you?

[ShaoshuSu]

I have read the other issue but it is a bit different I think. The colcon build runs successfully on my machine. However only the last command in the script python main.py --robot_amount 1 --robot go2 produces the error

Traceback (most recent call last):
  File "/home/username/go2_omniverse/main.py", line 25, in <module>
    from omniverse_sim import run_sim
  File "/home/username/go2_omniverse/omniverse_sim.py", line 7, in <module>
    from omni.isaac.lab.app import AppLauncher
ModuleNotFoundError: No module named 'omni.isaac.lab'

Also if I execute the commands step by step.

I think @abizovnuralem is right. You probably need to check your environment. Do you use conda? Do you activate it? Can you import omni with the following?

python -c "import omni"

If not, you probably need to set up the environment with the isaaclab instructions.

[ChristophKin]

I think I found one error. I didn't execute ./isaaclab.sh --install inside the isaaclab conda environment. After doing so, the ModuleNotFoundError: No module named 'omni.isaac.lab' error disappeared.

However, when executing ./run_sim.sh (with no active conda env) I get the following output:

#All required rosdeps installed successfully
Starting >>> carter_navigation
Starting >>> custom_message
Starting >>> isaac_ros2_messages
Starting >>> isaac_ros_navigation_goal
Starting >>> isaac_tutorials
/home/username/.local/lib/python3.10/site-packages/setuptools/_distutils/dist.py:260: UserWarning: Unknown distribution option: 'tests_require'gation_goal - 0.1s] [isaac_tutorials - 0.1s]
  warnings.warn(msg)
Finished <<< carter_navigation [0.96s]                                                                                                                                                                 
Finished <<< isaac_tutorials [1.08s]                                                                                                                                
--- stderr: isaac_ros_navigation_goal                                                                                                
/home/username/.local/lib/python3.10/site-packages/setuptools/_distutils/dist.py:260: UserWarning: Unknown distribution option: 'tests_require'
  warnings.warn(msg)
---
Finished <<< isaac_ros_navigation_goal [1.87s]
Finished <<< custom_message [3.69s]                                                                        
Finished <<< isaac_ros2_messages [3.95s]                     

Summary: 5 packages finished [4.14s]
  1 package had stderr output: isaac_ros_navigation_goal
#All required rosdeps installed successfully
Starting >>> go2_interfaces
Finished <<< go2_interfaces [4.41s]                     

Summary: 1 package finished [4.50s]
Traceback (most recent call last):
  File "/home/username/IsaacLab/go2_omniverse/main.py", line 25, in <module>
    from omniverse_sim import run_sim
  File "/home/username/IsaacLab/go2_omniverse/omniverse_sim.py", line 35, in <module>
    AppLauncher.add_app_launcher_args(parser)
  File "/home/username/IsaacLab/source/extensions/omni.isaac.lab/omni/isaac/lab/app/app_launcher.py", line 253, in add_app_launcher_args
    arg_group.add_argument("--cpu", action="store_true", help=argparse.SUPPRESS)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1448, in add_argument
    return self._add_action(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1650, in _add_action
    action = super(_ArgumentGroup, self)._add_action(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1462, in _add_action
    self._check_conflict(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1599, in _check_conflict
    conflict_handler(action, confl_optionals)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1608, in _handle_conflict_error
    raise ArgumentError(action, message % conflict_string)
argparse.ArgumentError: argument --cpu: conflicting option string: --cpu

Do you by any chance can help me further with this problem?

[ShaoshuSu]

I think I found one error. I didn't execute ./isaaclab.sh --install inside the isaaclab conda environment. After doing so, the ModuleNotFoundError: No module named 'omni.isaac.lab' error disappeared.

However, when executing ./run_sim.sh (with no active conda env) I get the following output:

#All required rosdeps installed successfully
Starting >>> carter_navigation
Starting >>> custom_message
Starting >>> isaac_ros2_messages
Starting >>> isaac_ros_navigation_goal
Starting >>> isaac_tutorials
/home/username/.local/lib/python3.10/site-packages/setuptools/_distutils/dist.py:260: UserWarning: Unknown distribution option: 'tests_require'gation_goal - 0.1s] [isaac_tutorials - 0.1s]
  warnings.warn(msg)
Finished <<< carter_navigation [0.96s]                                                                                                                                                                 
Finished <<< isaac_tutorials [1.08s]                                                                                                                                
--- stderr: isaac_ros_navigation_goal                                                                                                
/home/username/.local/lib/python3.10/site-packages/setuptools/_distutils/dist.py:260: UserWarning: Unknown distribution option: 'tests_require'
  warnings.warn(msg)
---
Finished <<< isaac_ros_navigation_goal [1.87s]
Finished <<< custom_message [3.69s]                                                                        
Finished <<< isaac_ros2_messages [3.95s]                     

Summary: 5 packages finished [4.14s]
  1 package had stderr output: isaac_ros_navigation_goal
#All required rosdeps installed successfully
Starting >>> go2_interfaces
Finished <<< go2_interfaces [4.41s]                     

Summary: 1 package finished [4.50s]
Traceback (most recent call last):
  File "/home/username/IsaacLab/go2_omniverse/main.py", line 25, in <module>
    from omniverse_sim import run_sim
  File "/home/username/IsaacLab/go2_omniverse/omniverse_sim.py", line 35, in <module>
    AppLauncher.add_app_launcher_args(parser)
  File "/home/username/IsaacLab/source/extensions/omni.isaac.lab/omni/isaac/lab/app/app_launcher.py", line 253, in add_app_launcher_args
    arg_group.add_argument("--cpu", action="store_true", help=argparse.SUPPRESS)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1448, in add_argument
    return self._add_action(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1650, in _add_action
    action = super(_ArgumentGroup, self)._add_action(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1462, in _add_action
    self._check_conflict(action)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1599, in _check_conflict
    conflict_handler(action, confl_optionals)
  File "/home/username/miniconda3/envs/isaaclab/lib/python3.10/argparse.py", line 1608, in _handle_conflict_error
    raise ArgumentError(action, message % conflict_string)
argparse.ArgumentError: argument --cpu: conflicting option string: --cpu

Do you by any chance can help me further with this problem?

You can probably refer to this issue #26.

[ChristophKin]

This worked, thank you!