[Bug Report] Error : On uv setup environment, Error for policy_runner example with 0.3.0-prerelease

[mat-macnica]

Hello,

I can success to install by "uv" and run below sample.
https://isaac-sim.github.io/IsaacLab-Arena/release/0.3.0-prerelease/pages/quickstart/installation.html
python isaaclab_arena/evaluation/policy_runner.py
--viz kit --policy_type zero_action --num_steps 200 cube_goal_pose

But I found Error to run below sample.
https://isaac-sim.github.io/IsaacLab-Arena/release/0.3.0-prerelease/pages/example_workflows/static_apple/step_4_evaluation.html
python isaaclab_arena/evaluation/policy_runner.py --viz kit --policy_type isaaclab_arena_gr00t.policy.gr00t_remote_closedloop_policy.Gr00tRemoteClosedloopPolicy --policy_config_yaml_path isaaclab_arena_gr00t/policy/config/g1_static_apple_gr00t_closedloop_config.yaml --remote_host 127.0.0.1 --remote_port 5555 --num_steps 600 --enable_cameras galileo_g1_static_pick_and_place --object apple_01_objaverse_robolab --destination clay_plates_hot3d_robolab --embodiment g1_wbc_agile_joint

Question:
Could you tell us the recommended way?

[ERROR]
python isaaclab_arena/evaluation/policy_runner.py --viz kit --policy_type isaaclab_arena_gr00t.policy.gr00t_remote_closedloop_policy.Gr00tRemoteClosedloopPolicy --policy_config_yaml_path isaaclab_arena_gr00t/policy/config/g1_static_apple_gr00t_closedloop_config.yaml --remote_host 127.0.0.1 --remote_port 5555 --num_steps 600 --enable_cameras galileo_g1_static_pick_and_place --object apple_01_objaverse_robolab --destination clay_plates_hot3d_robolab --embodiment g1_wbc_agile_joint
[WARN][AppLauncher]: There are no arguments attached to the ArgumentParser object. If you have your own arguments, please load your own arguments before calling the AppLauncher.add_app_launcher_args method. This allows the method to check the validity of the arguments and perform checks for argument names.
Loading user config located at: '/home/nvidia/IsaacLab-Arena_030/.venv/lib/python3.12/site-packages/isaacsim/kit/data/Kit/IsaacLab/3.0/user.config.json'
2026-07-31T05:58:19Z [Info] [carb] Logging to file: /home/nvidia/IsaacLab-Arena_030/.venv/lib/python3.12/site-packages/isaacsim/kit/logs/Kit/IsaacLab/3.0/kit_20260731_145819.log
2026-07-31T05:58:19Z [2ms] [Error] [carb] No space left on device for creating change watches. Sysctl value fs.inotify.max_user_watches may be insufficient. This message is logged once.
2026-07-31T05:58:19Z [13ms] [Warning] [omni.ext.plugin] [ext: isaaclab_visualizers] Extensions config 'extension.toml' doesn't exist '/home/nvidia/IsaacLab-Arena_030/submodules/IsaacLab/source/isaaclab_visualizers' or '/home/nvidia/IsaacLab-Arena_030/submodules/IsaacLab/source/isaaclab_visualizers/config'
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
E0000 00:00:1785477499.788744 289775 descriptor_database.cc:633] File already exists in database: grpc/health/v1/health.proto
W0000 00:00:1785477499.788788 289775 message.cc:301] Protobuf GeneratedMessageFactory: File is already registered: grpc/health/v1/health.proto

|---------------------------------------------------------------------------------------------|
| Driver Version: 580.173.02 | Graphics API: Vulkan
|=============================================================================================|
| GPU | Name | Active | LDA | GPU Memory | Vendor-ID | LUID |
| | | | | | Device-ID | UUID |
| | | | | | Bus-ID | |
|---------------------------------------------------------------------------------------------|
| 0 | NVIDIA RTX PRO 6000 Blackwell .. | Yes: 0 | | 98133 MB | 10de | 0 |
| | | | | | 2bb4 | ec7bac33.. |
| | | | | | ac | |
|=============================================================================================|
| OS: 22.04.5 LTS (Jammy Jellyfish) ubuntu, Version: 22.04.5, Kernel: 6.8.0-136-generic
| XServer Vendor: The X.Org Foundation, XServer Version: 12101004 (1.21.1.4)
| Processor: Intel(R) Xeon(R) w5-3423
| Cores: 12 | Logical Cores: 24
|---------------------------------------------------------------------------------------------|
| Total Memory (MB): 127797 | Free Memory: 91161
| Total Page/Swap (MB): 2047 | Free Page/Swap: 2046
|---------------------------------------------------------------------------------------------|
2026-07-31T05:58:21Z [1,513ms] [Warning] [omni.rtx] CPU performance profile is set to powersave. This profile sets the CPU to the lowest frequency reducing performance.
2026-07-31T05:58:21Z [1,536ms] [Warning] [omni.rtx] IOMMU is enabled.
2026-07-31T05:58:25Z [6,225ms] [Warning] [omni.log] Source: omni.hydra was already registered.
2026-07-31T05:58:26Z [6,617ms] [Warning] [pxr.Semantics] pxr.Semantics is deprecated - please use Semantics instead
2026-07-31T05:58:26Z [6,705ms] [Warning] [omni.replicator.core.scripts.extension] No material configuration file, adding configuration to material settings directly.
2026-07-31T05:58:27Z [7,605ms] [Warning] [omni.usd] Encountered USD Warnings but USD Diagnostics are currently muted. To view USD Warnings, please set the '/persistent/app/usd/muteUsdDiagnostics' setting to false in Preferences page.
Warning: Possible version incompatibility. Attempting to load omni::fabric::IStageReaderWriter with version v0.16 against v0.14.
2026-07-31T05:58:29Z [9,651ms] [Warning] [rtx.hydra] RenderDelegate : Warning /rtx/hydra/readTransformsFromFabricInRenderDelegate and geometry streaming are enabled together but this can cause issues with dynamic objects not streaming correctly due to problems in the transform update.
[ISAACLAB] AppLauncher initialization complete
[isaaclab-arena] AppLauncher initialization complete (10.6s)
Policy isaaclab_arena_gr00t.policy.gr00t_remote_closedloop_policy.Gr00tRemoteClosedloopPolicy is not registered. Dynamically importing from path: isaaclab_arena_gr00t.policy.gr00t_remote_closedloop_policy.Gr00tRemoteClosedloopPolicy
Closing simulation app
Exception caught in SimulationAppContext: ModuleNotFoundError: No module named 'gr00t'
Traceback:
Traceback (most recent call last):
File "/home/nvidia/IsaacLab-Arena_030/isaaclab_arena/evaluation/policy_runner.py", line 180, in main
policy_cls = get_policy_cls(args_cli.policy_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/nvidia/IsaacLab-Arena_030/isaaclab_arena/evaluation/policy_runner.py", line 55, in get_policy_cls
module = import_module(module_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/nvidia/.local/share/uv/python/cpython-3.12.13-linux-x86_64-gnu/lib/python3.12/importlib/init.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1387, in _gcd_import
File "", line 1360, in _find_and_load
File "", line 1331, in _find_and_load_unlocked
File "", line 935, in _load_unlocked
File "", line 999, in exec_module
File "", line 488, in _call_with_frames_removed
File "/home/nvidia/IsaacLab-Arena_030/isaaclab_arena_gr00t/policy/gr00t_remote_closedloop_policy.py", line 19, in
from gr00t.policy.server_client import PolicyClient as Gr00tPolicyClient
ModuleNotFoundError: No module named 'gr00t'
Killing the process without cleaning up

[Our Environment]
Operating System:Ubuntu 22.04
GPU Information:NVIDIA Pro6000 MAX-Q
CUDA : 13.0

So, I would appreciate if you check the behavior & tell us how to solve this problem.

Best regards,