something wrong with the asset

[XingxinHE]

Description

Hi team,

I am wondering if there is a major change in the asset files. I follow the asset section in the setup tip and I got a lot of warnings after I set the

persistent.isaac.asset_root.default = "C:/isaacsim_assets/Assets/Isaac/5.0"

exts."isaacsim.asset.browser".folders = [
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Robots",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/People",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/IsaacLab",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Props",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Environments",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Materials",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Samples",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors",
]

exts."isaacsim.gui.content_browser".folders = [
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Robots",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/People",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/IsaacLab",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Props",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Environments",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Materials",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Samples",
    "C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors",
]

under the [settings] section.

See the logs attached.

Isaac Sim version

5.0.0

Operating System (OS)

Windows 11

GPU Name

RTX 4080

GPU Driver and CUDA versions

Driver Version: 566.24, CUDA Version: 12.7

Logs

2025-08-25T13:43:42Z [316,519ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/multiScan165.usd
2025-08-25T13:43:42Z [316,519ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/picoScan150.usd
2025-08-25T13:43:42Z [316,519ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/SICK_microscan3_ABAZ90ZA1P01.usda
2025-08-25T13:43:42Z [316,519ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/SICK_multiScan136.usda
2025-08-25T13:43:42Z [316,520ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/SICK_multiScan165.usda
2025-08-25T13:43:42Z [316,520ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/SICK_picoScan150.usda
2025-08-25T13:43:42Z [316,520ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/SICK_tim781.usda
2025-08-25T13:43:42Z [316,520ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/.thumbs/256x256/TiM_781.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/tim781.usd
2025-08-25T13:43:42Z [316,559ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/Inspector83x/.thumbs/256x256/SICK_Inspector83x_case.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/Inspector83x/SICK_Inspector83x.usd
2025-08-25T13:43:42Z [316,600ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/LRS4581R/.thumbs/256x256/SICK_LRS4581R_case.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/LRS4581R/SICK_LRS4581R.usd
2025-08-25T13:43:42Z [316,646ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/microScan3/.thumbs/256x256/SICK_microScan3_case.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/microScan3/SICK_microScan3.usd
2025-08-25T13:43:42Z [316,695ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/MRS1104C/.thumbs/256x256/SICK_MRS1104C_case.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/MRS1104C/SICK_MRS1104C.usd
2025-08-25T13:43:42Z [316,828ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/.thumbs/256x256/nanoscan_back.jpg.auto.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/nanoscan3_case.usd
2025-08-25T13:43:42Z [316,829ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/.thumbs/256x256/nanoscan_back.jpg.auto.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/SICK_nanoScan3.usd
2025-08-25T13:43:42Z [316,829ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/.thumbs/256x256/nanoscan_back.jpg.auto.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/SICK_nanoscan3_CAAZ30AN1.usd
2025-08-25T13:43:42Z [316,829ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/.thumbs/256x256/SICK_nanoScan3.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/nanoScan3/nanoscan3_case.usd
2025-08-25T13:43:42Z [316,868ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/picoScan150/.thumbs/256x256/SICK_picoScan150.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/SICK/picoScan150/SICK_picoScan100_case.usd
2025-08-25T13:43:42Z [317,054ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/Slamtec/RPLIDAR_S2E/.thumbs/256x256/Slamtec_RPLIDAR_S2E.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/Slamtec/RPLIDAR_S2E/RPLIDAR_S2E.usda
2025-08-25T13:43:42Z [317,327ms] [Warning] [omni.kit.browser.folder.core.models.folder_browser_data] Thumbnail C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/Velodyne/vls-128/.thumbs/256x256/vls_128.usd.png does not belong to file C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors/Velodyne/vls-128/Velodyne_VLS128.usda
2025-08-25T13:43:43Z [317,442ms] [Error] [omni.kit.browser.folder.core.models.folder_browser_model] Exception when traverse: C:/isaacsim_assets/Assets/Isaac/5.0/Isaac/Sensors, [Errno 2] No such file or directory: 'c:\isaacsim\exts\isaacsim.asset.browser\cache\isaacsim.asset.browser.cache.json'
2025-08-25T13:43:43Z [317,443ms] [Error] [omni.kit.browser.folder.core.models.folder_browser_model] [omni.ui.tests.compare] Traceback:
Traceback (most recent call last):
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/folder_browser_model.py", line 694, in _run
done = await folder.start_traverse(on_connected_fn=self.__on_server_connected)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/folder_browser_data.py", line 314, in start_traverse
await self._traverse_folder_async(self.url)
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/folder_browser_data.py", line 453, in _traverse_folder_async
self._on_traverse_async_done()
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/folder_browser_data.py", line 514, in _on_traverse_async_done
self._on_traverse_done_fn(self, loading_completed=loading_completed, updated=self.has_update)
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/tree_folder_browser_model.py", line 243, in _on_folder_traversed
self._save_data_to_json(folder)
File "c:/isaacsim/extscache/omni.kit.browser.folder.core-1.10.9/omni/kit/browser/folder/core/models/folder_browser_model.py", line 628, in _save_data_to_json
with open(self._json_file, 'w') as json_file:
^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'c:\isaacsim\exts\isaacsim.asset.browser\cache\isaacsim.asset.browser.cache.json'

Additional information

No response

[vick-yu]

Thank you for reporting this issue and providing detailed information. I’ve been able to reproduce the same warning and error messages on Linux and will be discussing this with our team to investigate further.

[ekampourakis]

Having the same issue on Isaac 5.0 on Ubuntu 22.04

[damian238]

Also having the same issue on Isaac 5.0 on Ubuntu 22.04
I have spent many hours with different Ai helpers trying to uncover the source of the problem (without success). I hope this gets resolved soon.

[vick-yu]

Thank you for your patience. The issue you’re encountering has been addressed in Isaac Sim version 5.1.0. Please follow the updated instructions in https://docs.isaacsim.omniverse.nvidia.com/5.1.0/installation/install_faq.html to use the content browser extension as described in the 5.1.0 documentation. If you continue to experience issues after upgrading or following the new steps, feel free to provide additional details so we can help further.