When running on wsl, modifying the default value of the port is of no use.

[SunJiayu-L]

System Info

- `lerobot` version: 0.1.0
- Platform: Linux-5.15.167.4-microsoft-standard-WSL2-x86_64-with-glibc2.35
- Python version: 3.10.16
- Huggingface_hub version: 0.31.1
- Dataset version: 3.6.0
- Numpy version: 2.2.5
- PyTorch version (GPU?): 2.6.0+cu124 (False)
- Cuda version: 12040
- Using GPU in script?: <fill in>

Information

• One of the scripts in the examples/ folder of LeRobot
• My own task or dataset (give details below)

Reproduction

I was trying lerobot on WSL2, but when I execute

python lerobot/scripts/control_robot.py \
  --robot.type=so101 \
  --robot.cameras='{}' \
  --control.type=calibrate \
  --control.arms='["main_follower"]'" 

It reported that

 "serial.serialutil.SerialException: [Errno 2] could not open port /dev/tty.usbmodem585A0076891: [Errno 2] No such file or directory: '/dev/tty.usbmodem585A0076891'"

I have already changed the port default values,and I have connected the usb from windows to wsl.

2-1    1a86:55d3  USB 串行设备 (COM11)                                          Attached

leader_arms: dict[str, MotorsBusConfig] = field(
        default_factory=lambda: {
            "main": FeetechMotorsBusConfig(
                port="/dev/ttyACM0",
                motors={
                    # name: (index, model)
                    "shoulder_pan": [1, "sts3215"],
                    "shoulder_lift": [2, "sts3215"],
                    "elbow_flex": [3, "sts3215"],
                    "wrist_flex": [4, "sts3215"],
                    "wrist_roll": [5, "sts3215"],
                    "gripper": [6, "sts3215"],
                },
            ),
        }
    )

But when I run it on Ubuntu ,it works. Please help me!!!

Expected behavior

I want to know why this happened ,did I miss some steps？

[CarolinePascal]

Hi @SunJiayu-L !

Could you check if the port you want to use is correctly reported in the configuration displayed when the script is launched ? With the unmodified default configs.py you should see :

INFO 2025-05-14 12:02:43 ol_robot.py:409 {'control': {'arms': ['main_follower']},
 'robot': {'calibration_dir': '.cache/calibration/so101',
           'cameras': {},
           'follower_arms': {'main': {'mock': False,
                                      'motors': {'elbow_flex': [3, 'sts3215'],
                                                 'gripper': [6, 'sts3215'],
                                                 'shoulder_lift': [2,
                                                                   'sts3215'],
                                                 'shoulder_pan': [1, 'sts3215'],
                                                 'wrist_flex': [4, 'sts3215'],
                                                 'wrist_roll': [5, 'sts3215']},
                                      'port': '/dev/tty.usbmodem585A0076891'}},
           'gripper_open_degree': None,
           'leader_arms': {'main': {'mock': False,
                                    'motors': {'elbow_flex': [3, 'sts3215'],
                                               'gripper': [6, 'sts3215'],
                                               'shoulder_lift': [2, 'sts3215'],
                                               'shoulder_pan': [1, 'sts3215'],
                                               'wrist_flex': [4, 'sts3215'],
                                               'wrist_roll': [5, 'sts3215']},
                                    'port': '/dev/tty.usbmodem58760431091'}},
           'max_relative_target': None,
           'microphones': {},
           'mock': False}}

If your modifications were correctly taken into account, the output should be modified accordingly.

Best,

Caroline.