Permission denied, Isaac Sim doesn't load

Omniverse Isaac Sim
1

Hello Nvidia-Team,

i’m currently working on your Omniverse Isaac Sim tutorials and I keep getting error messages of denied permission:

Task exception was never retrieved
future: <Task finished coro=<MaterialLibraryExtension.preload_base_material_subids() done, defined at /home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py:411> exception=PermissionError(13, ‘Permission denied’)>
Traceback (most recent call last):
File “/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py”, line 463, in preload_base_material_subids
on_complete_fn()
File “/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py”, line 336, in cache_built
with open(self._cache_filename, ‘w’) as file:
PermissionError: [Errno 13] Permission denied: ‘/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/cache/Kit/104.2/529af2e4/material_cache.json’
2023-09-26 09:48:38 [40,523ms] [Warning] [gpu.foundation.plugin] Waiting for compilation of ray tracing shaders by GPU driver: 30 seconds so far

Task exception was never retrieved
future: <Task finished coro=<MaterialLibraryExtension.preload_base_material_subids() done, defined at /home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py:411> exception=PermissionError(13, ‘Permission denied’)>
Traceback (most recent call last):
File “/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py”, line 463, in preload_base_material_subids
on_complete_fn()
File “/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/extscore/omni.kit.material.library/omni/kit/material/library/material_library.py”, line 336, in cache_built
with open(self._cache_filename, ‘w’) as file:
PermissionError: [Errno 13] Permission denied: ‘/home/iph/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/cache/Kit/104.2/529af2e4/material_cache.json’
2023-09-26 09:48:38 [40,523ms] [Warning] [gpu.foundation.plugin] Waiting for compilation of ray tracing shaders by GPU driver: 30 seconds so far

I setup the Nucleus Server and I have access on it.

Also my folders from the Nucleus server have a red lock on them (root owner permissions), can I get rid of those like you have it in your Youtube-Tutorials?

Kind regards,
bay

2

@bay2 , i am just another OV user, but i know the locks are there by default on the NVIDIA assets (and some folders of your local drive) because it’s by design to prevent users from overwriting those resources or for security reasons. if you need to use, modify, or save the assets, you can copy it out of the locked folder into any folder without locks (e.g projects, users, library, etc).

another aspect to consider is the user set up:

https://docs.omniverse.nvidia.com/nucleus/latest/usage/acls.html

that said, i am not sure if this is exactly what is happening. did you already install Cache? and which tutorial(s) were you following when you got these messages? but more importantly, did it prevent the tutorial from executing in any way?

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