I am having this following Warning in the console of the Isaac Sim. Can anyone tell what does it mean or what could be its repurcussions?
Thanks
[Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
Isaac Sim Version
4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):
Operating System
Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):
Topic Description
Detailed Description
(Describe the issue in detail, including what you were trying to do, what you expected to happen, and what actually happened)
Error Messages
[Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
Additional Context
(Add any other context about the problem here)
I have installed a couple of third party libraries in the python interpreter. I have tried to keep the dependencies as much as possible.
@a_vi_shek would you be able to provide the full log to facilitate troubleshooting by other users/mods/devs?
So I have an USD file. I opned it without error. Now I made some changes and hit Ctrl+S. The following warnings came into the console:
2025-06-16 09:09:10 [497,219ms] [Warning] [omni.hydra.scene_delegate.plugin] Calling getBypassRenderSkelMeshProcessing for prim /World/rbvogui/robot_base_footprint/visuals.proto_mesh_id8 that has not been populated
2025-06-16 09:09:25 [511,271ms] [Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
2025-06-16 09:09:25 [511,273ms] [Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
2025-06-16 09:09:25 [511,277ms] [Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
2025-06-16 09:09:25 [511,279ms] [Warning] [omni.usd] Warning: in SdfPath at line 81 of C:\g\122538378\USD\pxr\usd\sdf\path.cpp -- Ill-formed SdfPath <>: syntax error
I hope this helps. Maybe?
Thanks
Avishek
hard to say based on that snippet. the latest full log can be located in the path below in case you are okay with uploading it:
%userprofile%\.nvidia-omniverse\logs\Kit\Isaac-Sim Full\4.5
also, can you elaborate on how the USD was generated? was it from earlier version of Isaac Sim or procured via 3rd party sources, etc.? is this warning message persistent on other USD files?
kit_20250616_103124.log (1.3 MB)
kit_20250616_105140.log (1.2 MB)
kit_20250616_110053.log (1.3 MB)
kit_20250521_140554.log (9.1 MB)
These are the last couple of logs. I have no isuues sharing it.
The file is a robot model generated from a URDF file. Then a custom end effector was attached using assemble robot tool.
Best,
Avishek
Also I did some thing before, may be it will help.
I installed a package from Github. And got the following error.
Using cached usd_core-25.5.1-cp310-none-win_amd64.whl (13.9 MB)
Installing collected packages: usd-core
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
nvidia-srl-usd 0.19.1 requires tqdm<5.0.0,>=4.63.0, which is not installed.
nvidia-srl-usd 0.19.1 requires usd-core<24.00,>=21.11, but you have usd-core 25.5.1 which is incompatible.
nvidia-srl-usd-to-urdf 0.7.2 requires lxml<5.0.0,>=4.9.2, but you have lxml 5.3.0 which is incompatible.
nvidia-srl-usd-to-urdf 0.7.2 requires usd-core<24.00,>=21.11, but you have usd-core 25.5.1 which is incompatible.
Successfully installed usd-core-25.5.1
The package I was installing from Github did not have any specific version of usd-core so installed the latest one. After this I manually removed the tqdm, usd-core and lxml and installed the supported versions shown in the error list.
On a similar note, where is the usd-core package installed in the Isaac Sim folder? I could not find that. However it imports correctly in the VSCode.
Thanks.