Unable to download any resources from Nucleus Navigator localhost

Omniverse Core Platform Nucleus
1

It was good before.
But today I suddenly couldn’t download these asserts from Nucleus Navigator localhost.
When clicking to download, a network error will appear.

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image2559×1468 254 KB

I can access these asserts in the USD Composer software.
So these resources all exist, and I have restarted my computer multiple times to try.
This is the log from the past few days:
Nucleus.log (2.2 MB)
I saw such an error, could that be the reason?

2024-08-08 08:16:58 [654,683ms] [Error] [omni.core] [8208] c:\gitlab-runner\builds\sr9_1st2\0\omniverse\backend\api_server\source\plugins\common\childprocess.cpp:stderrReadCallback():31: From process omni-lft-service\omni-lft-service.exe:Traceback (most recent call last):

2024-08-08 08:16:58 [654,683ms] [Error] [omni.core] [8208] c:\gitlab-runner\builds\sr9_1st2\0\omniverse\backend\api_server\source\plugins\common\childprocess.cpp:stderrReadCallback():31: From process omni-lft-service\omni-lft-service.exe: File “lft\middlewares.py”, line 98, in log_errors_middleware
File “aiohttp\web_urldispatcher.py”, line 200, in handler_wrapper
File “lft\paths\download.py”, line 65, in download_asset
File “lft\paths\download.py”, line 56, in download_asset_base
File “lft\resolvers.py”, line 97, in read_from_resolver
lft.resolvers.ResolverError: ResolverResultCode.ResolverResultCodePathNotFound

2024-08-08 08:16:58 [654,684ms] [Error] [omni.core] [8208] c:\gitlab-runner\builds\sr9_1st2\0\omniverse\backend\api_server\source\plugins\common\childprocess.cpp:stderrReadCallback():31: From process omni-lft-service\omni-lft-service.exe:Error handling request
Traceback (most recent call last):
File “aiohttp\web_protocol.py”, line 452, in _handle_request
File “aiohttp\web_app.py”, line 543, in _handle
File “aiohttp\web_middlewares.py”, line 114, in impl
File “lft\middlewares.py”, line 66, in cors_middleware
File “lft\middlewares.py”, line 129, in verbose_access_log_middleware
File “lft\middlewares.py”, line 78, in filesystem_error_middleware
File “lft\middlewares.py”, line 98, in log_errors_middleware
File “aiohttp\web_urldispatcher.py”, line 200, in handler_wrapper
File “lft\paths\download.py”, line 65, in download_asset
File “lft\paths\download.py”, line 56, in download_asset_base
File “lft\resolvers.py”, line 97, in read_from_resolver
lft.resolvers.ResolverError: ResolverResultCode.ResolverResultCodePathNotFound

2

If this is running on localhost, you’ll need to go to your system monitor for Nucleus and make sure all services are running. This seems like LFT is likely not running properly.

If you click the clipboard in the error window, you can get a table with the paths and errors received.

3

Also, looking at your log, there is a connection refused error. Is this an IT managed computer? Is it possible IT changed policies on ports, or you have an antivirus software running blocking the connection?

4

Thank you for your reply, dlindsey.
This is a regular work laptop, not an IT managed computer.
Through http://localhost:3080/ Query, all services are normal, status: Running
There is no antivirus software, and I have also turned off all firewalls.
I guess I did some experiments before the problem occurred. I performed the Add Server operation on NUCLEUS NAVIGATOR on other computers within the local LAN using the LAN IP address, and then discovered that the resources could not be downloaded.
Can you teach me how to view the specific policy for which port?
Your help is greatly appreciated. Thank you kindly.

5

Please look at our Nucleus instructions.
Networking and TCP/IP Ports — Omniverse Nucleus latest documentation (nvidia.com)

Also, System Monitor is your place you’d change all this for your localhost servier.