Known Issue: Error checking Isaac Sim Assets

[Sheikh_Dawood]

Hi all,

If you are seeing this pop-up error below when loading Isaac Sim. We have a recommended workaround.

First, un-check the Perform Nucleus check on startup box above. This will prevent the pop-up on the next run.
If you are running from commandline, you can use the flag --/persistent/exts/omni.isaac.app.setup/nucleusCheck=false when running Isaac Sim. You only need to run with this flag once to set this setting.

Next, use the new instructions below to add the Isaac mount to your Nucleus server. If you have already created a similar mount, please un-mount it and create this new one.

Name: Isaac
Type: Amazon S3
Host: d28dzv1nop4bat.cloudfront.net
Service: s3
Redirection: https://d28dzv1nop4bat.cloudfront.net

[Sheikh_Dawood]

See fix for docker container here:

Failed to run standalone Python app from inside docker

Hi @lemon.1999 This error is related to the change of server as mentioned by @Sheikh_Dawood in this post If you are working in a docker container you may not be able to make the changes from Nucleus Web UI. In this case, you can modify the ``/isaac-sim/installers/nucleus/Nucleus/omni.server.app.config.json` file and replace line 292 with: "options": "{\"timeout\": 600, \"host\":\"d28dzv1nop4bat.cloudfront.net\",\"service\":\"s3\",\"secure\":false,\"redirection\":\"https://d28dzv1nop4bat.clo…

[user56551]

Could you provide more instructions for how to get to that Mount menu?

[Sheikh_Dawood]

We have instructions in the Setup FAQ section.
https://docs.omniverse.nvidia.com/app_isaacsim/app_isaacsim/install_faq.html#nucleus-and-cache

[user56551]

Thank you! Exactly what I was looking for.

[user56551]

Just one comment, although it sounds dumb, I didn’t realize I was supposed to right click to make a new mount. It just says “Create a New Mount”, but there is no “new mount” button.

[Sheikh_Dawood]

You will need to be logged in as an admin of the server to be able to create a new mount on the root path.

[user56551]

I am able to create a new mount… by right clicking and making a new mount. I am just saying there is no button that says “New Mount” in the GUI (you need to right click in the window to see it), so the instructions were slightly confusing for me.

[Sheikh_Dawood]

Right. Thanks. We’ll update the docs with more detailed information.

[lagf]

Hello
I hope you’re doing well.

I had the same error while running isaac sim, and I did everything in this post, but the problem was still there and I got the error “error finding new version of Isaac Sim assets.”

I tried the host and redirection in this link
https://docs.omniverse.nvidia.com/app_isaacsim/app_isaacsim/install_faq.html#nucleus-and-cache

as you stated in recent posts, but now everything in my Nucleus server is gone and it’s empty now. Could you please tell me how I can fix this?

[Sheikh_Dawood]

Hi, please try the host and redirection url at the top of this post. We will update the docs soon.

[lagf]

I tried that one first, but the error remained. Now it’s like everything in my server got erased. I tried to mount it again, but I got the message “already exists”. You can find a photo of my server in the attachment.
By running Isaac Sim, now I get an error that says connection failed and that I have to log in to website, even though I am logged in.

[Sheikh_Dawood]

Do you have a backup of your data?
You may need to do a clean install of Nucleus. Close Isaac Sim, uninstall Nucleus then remove the folder in the post below. Next reinstall Nucleus and add the new mount.

Cannot establish connection to the nucleus server!

I believe a clean install of Nucleus should help. When the Omniverse Launcher outage is resolved, try this. Uninstall Nucleus Delete the folders below: ~/.local/share/ov/Auth ~/.local/share/ov/server ~/.local/share/ov/tagging_service Re-install Nucleus

[lagf]

Thank you that brought back my server folders.
But I still get the error regarding Isaac Sim assets.
(I didn’t uncheck the “Nucleus check” box because I wanted to see if the error is really solved.)

[Sheikh_Dawood]

That error is a known issue and can be ignore/turned off. This download feature is no longer working on the current version and will be fixed in the next version.

[jason.anderson]

@Failed to run standalone Python app from inside docker

"options": "{\"timeout\": 600, \"host\":\"d28dzv1nop4bat.cloudfront.net\",\"service\":\"s3\",\"secure\":false,\"redirection\":\"https://d28dzv1nop4bat.cloudfront.net\"}",

One liner if you don’t want to script fixing the config file:

sed -i 's|"options": "{\\"timeout\\": 600, \\"host\\":\\"ov-isaac.s3.us-west-1.amazonaws.com\\",\\"service\\":\\"s3\\",\\"secure\\":false,\\"redirection\\":\\"http://dpcil1p2xgdf8.cloudfront.net/\\"}",|"options": "{\\"timeout\\": 600, \\"host\\":\\"d28dzv1nop4bat.cloudfront.net\\",\\"service\\":\\"s3\\",\\"secure\\":false,\\"redirection\\":\\"https://d28dzv1nop4bat.cloudfront.net\\"}",|' /isaac-sim/installers/nucleus/Nucleus/omni.server.app.config.json

[kt07ef1]

Hello, I’ve also got the same problem. Any ETA on next version of Isaac Sim?

[im.renpei]

Hi @Sheikh_Dawood , when I set /Isaac according to your suggestion, the problem still exists. The following info will be prompted in the terminal:

[6.075s] app started
[10.450s] Isaac Sim App is loaded.
[10.478s] Checking for Isaac Sim assets on Nucleus 
2022-05-07 04:10:56 [16,596ms] [Warning] [omni.isaac.core.utils.nucleus] Failed to list entries for https://ov-isaac.s3.us-west-1.amazonaws.com: Result.ERROR
2022-05-07 04:10:56 [16,596ms] [Warning] [omni.isaac.core.utils.nucleus] Error finding new version of Isaac Sim assets

Thanks for your hlep.

[nvidia-orin]

@Sheikh_Dawood
Till few weeks ago, everything was working fine. I came back to where I left of, but I start to see strage issues to the point that I decided to re-install everything (though, the work is backed up). Now I am stuck on this assets download issue. The mount is pretty much slow to no-working condition.

Are you guys planning a major and/or new release of the Omniverse Isaac SIM?

Thanks.