Unable to Access Stream in Kit Application Template (USD Viewer) and Web Viewer Sample (Web Client) - NVST_CCE_DISCONNECTED Error with Kit SDK 106.5.0

Omniverse Core Platform Kit App Streaming
1

Hi Omniverse Community,

I am currently working with the Kit Application Template (USD Viewer/USD composer) and the Web Viewer Sample (web client). However, I am encountering an issue where the browser is unable to access the stream. Below are the details of the errors and warnings I am seeing:

  1. USD Viewer Warnings:
e[33mmain: thread_init: already added for thread e[;me[33mmain: thread_init: already added for thread e;m2025-03-07 05:44:03 [100,861ms] [Warning] [carb.livestream-rtc.plugin] onClientEventRaised: NVST_CCE_DISCONNECTED when m_connectionCount 4294967294 != 1 2025-03-07 05:44:03 [100,888ms] [Warning] [carb.livestream-rtc.plugin] onClientEventRaised: NVST_CCE_DISCONNECTED when m_connectionCount 4294967293 != 1
  1. Browser Console Errors:
    image
    image1904×980 122 KB

Additional Information:

  • Kit SDK Version: 106.5.0+release.162521.d02c707b.gl

  • Relevant Extensions:

    • omni.kit.livestream.core-6.1.0
    • omni.kit.livestream.messaging-1.1.1
    • omni.kit.livestream.webrtc-6.0.0

  • Platform: Windows 10

  • Web Viewer Sample Versions Tested: 1.4.1 and 1.4.0

  • **Local streaming

I have followed the documentation to set up both the USD Viewer and the Web Viewer Sample, but I am unable to resolve this issue. The warnings suggest a disconnection issue with the NVST (NVIDIA Streaming) client, and the browser console also shows errors that might be related to the stream not being accessible.

Has anyone encountered a similar issue or have any suggestions on how to resolve this? Any help would be greatly appreciated!

Thank you in advance!

2

Launch Attempts:
I have tried launching the viewer using the following commands, but none of them worked:

  1. .\repo.bat launch
  2. .\repo.bat launch -- --no-window
  3. .\repo.bat launch -- --/app/auto_load_usd={App dir}\kit-app-template\_build\windows-x86_64\release\samples\stage01.usd --no-window
  4. .\repo.bat launch -- --/app/auto_load_usd=http://localhost:8080/stage01.usd --no-window
3

Ok and when you run your template from repo, you are choosing the STREAMING version correct? Not the regular version?

image
image1504×476 28.9 KB

4

Thank you for your reply.
Yes，The command to execute is as follows:

.\repo.bat launch -d

Then select my_company.my_usd_composer3_streaming.kit or my_company.my_usd_viewer_streaming.kit

5

You select the composer streaming kit

6

Then to receive the stream you need download and build the “web streaming sample” from GitHub.