When opening a file in Isaac asset, the response is very slow and a libcurl error occurs

When opening a file in Isaac asset, the response is very slow and a libcurl error occurs.
The response when opening a file in Isaac asset is very slow, taking about half an hour. But it wasn’t like this before. I started sim using -v and it produced some error messages:

HTTP Client: http: libcurl error (28): Timeout was reached for http://dcb18d6mfegct.cloudfront.net/Assets/Isaac/2023.1.1/Isaac/People/Characters/.thumbs/256x256/Biped_Setup.usd.png
2024-03-15 02:53:16 [1,165,155ms] [Info] [omni.client.plugin] HTTP Client: http: libcurl error (56): Failure when receiving data from the peer for http://dcb18d6mfegct.cloudfront.net/Assets/Isaac/2023.1.1/Isaac/People/Characters/female_adult_police_01_new/.thumbs/256x256/female_adult_police_01_new.usd.png

I also have some warnings that make me uncomfortable:
2024-03-15 02:34:18 [27,040ms] [Warning] [omni.kit.hotkeys.core.registry] [Hotkey] duplicated action as SPACE (On Press) with omni.kit.widget.toolbar.omni.kit.widget.toolbar::toolbar::play!
2024-03-15 02:34:18 [27,040ms] [Warning] [omni.kit.hotkeys.core.registry] [Hotkey] Cannot register Global [omni.kit.widget.toolbar] omni.kit.widget.toolbar::toolbar::play.SPACE, error code: Duplicated action definition

But I can open my own designed files that do not reference the Isaac asset through the local disk. I don’t know what I should do now and I sincerely hope to get your help.

2024-03-15 02:58:10 [1,459,906ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2023.1.1/Isaac/People/Characters/.thumbs/256x256/Biped_Setup.usd.png or file is empty
2024-03-15 02:58:10 [1,459,906ms] [Info] [omni.client.plugin] Tick: provider_http: Read failed! Error: Connection. URI=‘http://dcb18d6mfegct.cloudfront.net/Assets/Isaac/2023.1.1/Isaac/People/Characters/.thumbs/256x256/Biped_Setup.usd.png’: Unable to connect to server! Likely indicates a client side networking error or problem with Omniverse Cache!
2024-03-15 02:58:10 [1,459,906ms] [Warning] [omni.ui] Failed to upload UI Image ‘http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2023.1.1/Isaac/People/Characters/.thumbs/256x256/Biped_Setup.usd.png

@Simplychenable Friend, can you help me again

@Gourd did you happen to lose connection to the nucleus server or localhost? what does the nucleus tab of your OV launcher look like, and could you double check to see if all services are running in the OV system monitor?

I’m sure my nucleus is running normally and all services are running. No connection timeout to nucleus is shown.
I’m also trying to troubleshoot the error, and I’ve reinstalled Isaac and omniverse. I noticed some caches were not cleared successfully and am in the process of reinstalling everything

@Simplychenable I ultimately failed. I providing my log and sincerely and urgently
logs.zip (6.3 MB)
wanted to know the reason

just curious, how are you uninstalling/reinstalling?

@Simplychenable
1.I used launcher-cleanup@1.1.1.windows-x86_64.signed tool to clean all data
2. Delete the remaining data in the C drive and delete the folder C:\Users\admin\AppData\Local\NVIDIA\DXCache\Omniverse. I thought it was GPUcache inside.
3. Re-open the launcher and install nucleus, cache and sim.

Hi. I believe you can ignore the warnings for omni.kit.hotkeys.core.registry.

From the logs, it looks like you are able to connect to your localhost Nucleus. The error looks like you are loading the asset from the Kit or Isaac Asset Browser. This extension gets the the assets directly from the Cloud.

To open assets via your local Nucleus, open the assets from the Content Browser instead and look for the NVIDIA folder. Can also install Cache from the Launcher to cache the assets that is pulled via Nucleus.

@Sheikh_Dawood Thank you for your reply. I am now doing what you said, but there are still some problems.
I can’t reproduce the problem at the moment, but I found the same error message in other questions (not solved):

omni::ui::GpuResourcesCache: trying to release non-existent cached GPU resource '/home/yangfan/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/exts/omni.kit.window.filepicker/data/thumbnails/usd_stage_256.png:2024-02-23@09:57:48'
2024-03-14 07:22:32 [17,417ms] [Warning] [omni.ui] omni::ui::GpuResourcesCache: trying to release non-existent cached GPU resource '/home/yangfan/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/exts/omni.kit.window.filepicker/data/thumbnails/usd_stage_256.png:2024-02-23@09:57:48'
2024-03-14 07:22:32 [17,417ms] [Warning] [omni.ui] omni::ui::GpuResourcesCache: trying to release non-existent cached GPU resource '/home/yangfan/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/exts/omni.kit.window.filepicker/data/thumbnails/usd_stage_256.png:2024-02-23@09:57:48'
2024-03-14 07:26:21 [246,171ms] [Warning] [rtx.neuraylib.plugin] MATERIAL http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00000000235c91d0 not found
2024-03-14 07:26:21 [246,171ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00000000235c91d0(1,1): C100 "mdl" expected
2024-03-14 07:26:21 [246,171ms] [Error] [rtx.neuraylib.plugin] Compiler Core: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00000000235c91d0(1,1): C100 "mdl" expected
2024-03-14 07:26:21 [246,171ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope) failed: ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Glass::ZCEClear_5FGlass_2Emdl
2024-03-14 07:26:21 [246,171ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope): ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Glass::ZCEClear_5FGlass_2Emdl

Hi. Those seems like a non-blocking warnings. Do you encounter a crash or do the assets loaded are not looking correct with missing textures?

Can you provide more details on how and which assets you are loading?
It is possible there are broken references on some assets.

Hi, @Sheikh_Dawood

I am the one encountering the same problem. When I open a local .usd file (not in Nucleus) in Isaac Sim, there will be warnings above and then show “Request through cache failed. Retrying without cache”. After over twenty minutes the scene will be loaded, which should be loaded in several seconds.

2024-03-15 03:13:21 [382,449ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl
2024-03-15 03:13:21 [382,449ms] [Warning] [omni.client.plugin]  HTTP Client: omniclient: CC-873: Bypassing cache until the application is restarted
2024-03-15 03:14:06 [427,779ms] [Warning] [rtx.neuraylib.plugin] MATERIAL http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0 not found
2024-03-15 03:14:06 [427,779ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0(1,1): C100 "mdl" expected
2024-03-15 03:14:06 [427,779ms] [Error] [rtx.neuraylib.plugin] Compiler Core: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0(1,1): C100 "mdl" expected
2024-03-15 03:14:06 [427,779ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope) failed: ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Glass::ZCEClear_5FGlass_2Emdl
2024-03-15 03:14:06 [427,779ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope): ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Glass::ZCEClear_5FGlass_2Emdl
2024-03-15 03:14:07 [428,451ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Metals/Aluminum_Anodized_Black.mdl
2024-03-15 03:17:08 [609,551ms] [Warning] [rtx.neuraylib.plugin] MATERIAL http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Metals/Aluminum_Anodized_Black.mdl?watch=00007787b99b38e0 not found
2024-03-15 03:17:08 [609,551ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Metals/Aluminum_Anodized_Black.mdl?watch=00007787b99b38e0(1,1): C100 "mdl" expected
2024-03-15 03:17:08 [609,551ms] [Error] [rtx.neuraylib.plugin] Compiler Core: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Metals/Aluminum_Anodized_Black.mdl?watch=00007787b99b38e0(1,1): C100 "mdl" expected
2024-03-15 03:17:08 [609,551ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope) failed: ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Metals::Z1AAluminum_5FAnodized_5FBlack_2Emdl
2024-03-15 03:17:08 [609,551ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope): ::Z6Ahttp_3A_2F::Z58omniverse_2Dcontent_2Dproduction_2Es3_2Dus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::Base::Metals::Z1AAluminum_5FAnodized_5FBlack_2Emdl
2024-03-15 03:17:53 [654,887ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Metals/Aluminum_Anodized_Black.mdl

The ‘/.local/share/ov/pkg/isaac_sim-2022.2.1/kit/exts/omni.kit.window.filepicker/data/thumbnails/usd_stage_256.png’ the warning mentioned is actually the icon of .usd file, which I guess is one of the reasons for loading slow.

The .usd file I need to load is as below. It uses some material in Isaac Sim, like the glass material mentioned in the warning. When loaded, some of the components using the Isaac material turn red.

Besides, when I start Isaac Sim from vscode using omni_python, the scene will be stuck in a few steps with the warning below. It seems due to loading the Isaac assets (beta) slowly. The whole GUI fails to respond and I have to force quit.

2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1200.usd.png
2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: omniclient: CC-873: Bypassing cache until the application is restarted
2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1147.usd.png
2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-C2/.thumbs/256x256/2fc2_instanceable.usd.png
2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1179.usd.png
2024-03-21 00:37:29 [194,120ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-140/.thumbs/256x256/2f140_instanceable.usd.png
2024-03-21 00:37:30 [195,119ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-85/.thumbs/256x256/2f85_instanceable.usd.png
2024-03-21 00:38:46 [270,887ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-85/.thumbs/256x256/2f85_instanceable.usd.png
2024-03-21 00:39:31 [316,285ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-85/.thumbs/256x256/2f85_instanceable.usd.png or file is empty
2024-03-21 00:39:31 [316,285ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-85/.thumbs/256x256/2f85_instanceable.usd.png (reason: 3)
2024-03-21 00:39:31 [316,285ms] [Warning] [omni.ui] Failed to upload UI Image 'http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-85/.thumbs/256x256/2f85_instanceable.usd.png'
2024-03-21 00:40:31 [375,718ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1147.usd.png
2024-03-21 00:40:31 [375,718ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-140/.thumbs/256x256/2f140_instanceable.usd.png
2024-03-21 00:40:31 [375,718ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1200.usd.png
2024-03-21 00:40:31 [375,718ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1179.usd.png
2024-03-21 00:40:31 [375,718ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-C2/.thumbs/256x256/2fc2_instanceable.usd.png
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-C2/.thumbs/256x256/2fc2_instanceable.usd.png or file is empty
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1179.usd.png or file is empty
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1200.usd.png or file is empty
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1147.usd.png or file is empty
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to read texture file http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-140/.thumbs/256x256/2f140_instanceable.usd.png or file is empty
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-C2/.thumbs/256x256/2fc2_instanceable.usd.png (reason: 3)
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1147.usd.png (reason: 3)
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1200.usd.png (reason: 3)
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/O3dyn/Parts/.thumbs/256x256/JFD_JFD_1179.usd.png (reason: 3)
2024-03-21 00:41:27 [431,996ms] [Error] [gpu.foundation.plugin] Failed to load texture http://omniverse-content-production.s3-us-west-2.amazonaws.com/Assets/Isaac/2022.2.1/Isaac/Robots/Robotiq/2F-140/.thumbs/256x256/2f140_instanceable.usd.png (reason: 3)

I have reinstalled the Omniverse but the problem exists. Could you figure out where the problem lies?

Hi @Follograph - I saw somewhere in your log file that you are still using Isaac Sim 2022.2.1. Latest Isaac Sim version is 2023.1.1. Have you tried to install that?

Hi @rthaker

I need to use CuRobo with Isaac Sim, which doesn’t support 2023.1.1. So I have to stick with 2022.2.1.

https://docs.omniverse.nvidia.com/isaacsim/latest/advanced_tutorials/tutorial_advanced_curobo.html

Hi @rthaker

Actually the installation instruction of cuRobo tells that the 2023.1.1 version is not supported and thus I have not tested the examples in 2023 version. Whatever, do you mean it may be the 2022 version that leads to the problem?

https://curobo.org/source/getting_started/1_install_instructions.html

Hi @Follograph - I received a response from the dev. The example you are using is part of the cuRobo research release and is not supported as a product.

For product support wait for the Isaac 3.0 release (don’t confuse with Isaac Sim release :) ) and use the cuMotion/cuRobo-IsaacSim example there.

or the cuRobo research release, it’s probably best to direct questions to the cuRobo github (Issues · NVlabs/curobo · GitHub) with the caveats that it’s a research release that is not fully supported

Hi @rthaker

Thanks for response! So the interaction between cuRobo and Isaac Sim has yet to be fully developed, which may lead to the slow loading of Isaac assets.

But when it comes to opening the .usd file in Isaac Sim, the warning below makes it slow to load the reference assets. Would updating the version to 2023.1.1 be the solution to this problem ?

2024-03-15 03:08:03 [64,637ms] [Warning] [omni.usd] Warning (secondary thread): in _ReportErrors at line 2830 of /buildAgent/work/ca6c508eae419cf8/USD/pxr/usd/usd/stage.cpp -- Could not open asset @/home/yangfan/simulation/box_exact.usd@ for payload on prim @/home/yangfan/simulation/total_all.usd@,@anon:0x777638005fb0@</World/box_exact>. (instantiating stage on stage @/home/yangfan/simulation/total_all.usd@ <0x1dc41950>)
2024-03-15 03:08:03 [64,637ms] [Warning] [omni.usd] Warning (secondary thread): in _ReportErrors at line 2830 of /buildAgent/work/ca6c508eae419cf8/USD/pxr/usd/usd/stage.cpp -- Could not open asset @/home/yangfan/simulation/box_empty.usd@ for payload on prim @/home/yangfan/simulation/total_all.usd@,@anon:0x777638005fb0@</World/box_empty>. (instantiating stage on stage @/home/yangfan/simulation/total_all.usd@ <0x1dc41950>)
2024-03-15 03:13:21 [382,449ms] [Warning] [omni.client.plugin]  HTTP Client: provider_http: CC-493: Request through cache failed. Retrying without cache for http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl
2024-03-15 03:13:21 [382,449ms] [Warning] [omni.client.plugin]  HTTP Client: omniclient: CC-873: Bypassing cache until the application is restarted
2024-03-15 03:14:06 [427,779ms] [Warning] [rtx.neuraylib.plugin] MATERIAL http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0 not found
2024-03-15 03:14:06 [427,779ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0(1,1): C100 "mdl" expected
2024-03-15 03:14:06 [427,779ms] [Error] [rtx.neuraylib.plugin] Compiler Core: http://omniverse-content-production.s3-us-west-2.amazonaws.com/Materials/Base/Glass/Clear_Glass.mdl?watch=00007775992d3eb0(1,1): C100 "mdl" expected

Hi @Follograph
Let’s break down the key points of the message:

  1. Timestamp & Log Level: 2024-03-15 03:08:03 [64,637ms] [Warning]
  • This is the timestamp of when the log was recorded, and the time since the beginning of the process or task that generated the log (64,637 milliseconds). The [Warning] indicates it is not a critical error, but something that should be addressed or noted.
  1. Context: [omni.usd]
  • This gives us context about where the warning is coming from; it relates to the USD functionality provided by Omniverse or similar software suite related to USD operations.
  1. Warning message: Could not open asset @/home/yangfan/simulation/box_exact.usd@
  • The system tried to load the box_exact.usd file from the specified path (/home/yangfan/simulation/), but was unable to do so.
  1. Related prim and stage: for payload on prim @/home/yangfan/simulation/total_all.usd@,@anon:0x777638005fb0@</World/box_exact>
  • The box_exact.usd file is expected to be a payload (content that can be lazily loaded on-demand) for a prim (a single element in the USD hierarchy) in the total_all.usd stage.
  1. Repeated warning: A similar warning is issued for another asset, box_empty.usd, that also could not be opened.

How to address the issue:

  • Check File Paths: Verify the file paths given in the warning message. Make sure that the files (box_exact.usd and box_empty.usd) actually exist at the specified locations on your file system.
  • File Permissions: Ensure that you have the appropriate read permissions for those USD files.
  • File Integrity: Check to see if the files are intact and not corrupted in any way.
  • Correctness of USD Files: Make sure the USD files are properly formatted and contain the expected data—invalid or malformed USD content can cause such warnings.
  • Dependencies and Asset Resolution: If you are using a system that has asset resolution (like a system that overrides file paths), ensure that it is configured correctly so that it can resolve the correct path to your USD files.