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[GH-ISSUE #20157] issue: Channels: Model @ mention fails with "'str' object has no attribute 'app'" #122418

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opened 2026-05-21 01:07:07 -05:00 by GiteaMirror · 3 comments
GiteaMirror commented 2026-05-21 01:07:07 -05:00
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Originally created by @sheldonbob on GitHub (Dec 24, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/20157

Check Existing Issues

  • I have searched for any existing and/or related issues.
  • I have searched for any existing and/or related discussions.
  • I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!).
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

v0.6.43

Ollama Version (if applicable)

No response

Operating System

macOS 15.2

Browser (if applicable)

Any

Confirmation

  • I have read and followed all instructions in README.md.
  • I am using the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

Model should respond to @ mention in Channels

Actual Behavior

  • Message sends
  • No response from model
  • Error in logs: 'str' object has no attribute 'app'

Steps to Reproduce

  1. Enable Channels (Beta) in Admin Settings → General
  2. Create a new channel (public or private)
  3. Try to @ mention any model (e.g., @llama3 or @openrouter/model)
  4. Type message and send
  5. Model doesn't respond

Logs & Screenshots

2025-12-24 09:29:39.059 | INFO | open_webui.routers.channels:model_response_handler:1053 - 'str' object has no attribute 'app'

Additional Information

  • Models work fine in regular chats
  • Issue occurs with both Ollama and OpenRouter models
  • Connections are properly configured
Originally created by @sheldonbob on GitHub (Dec 24, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/20157 ### Check Existing Issues - [x] I have searched for any existing and/or related issues. - [x] I have searched for any existing and/or related discussions. - [x] I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!). - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version v0.6.43 ### Ollama Version (if applicable) _No response_ ### Operating System macOS 15.2 ### Browser (if applicable) Any ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior Model should respond to @ mention in Channels ### Actual Behavior - Message sends - No response from model - Error in logs: `'str' object has no attribute 'app'` ### Steps to Reproduce 1. Enable Channels (Beta) in Admin Settings → General 2. Create a new channel (public or private) 3. Try to @ mention any model (e.g., @llama3 or @openrouter/model) 4. Type message and send 5. Model doesn't respond ### Logs & Screenshots 2025-12-24 09:29:39.059 | INFO | open_webui.routers.channels:model_response_handler:1053 - 'str' object has no attribute 'app' ### Additional Information - Models work fine in regular chats - Issue occurs with both Ollama and OpenRouter models - Connections are properly configured
GiteaMirror added the bug label 2026-05-21 01:07:07 -05:00
GiteaMirror commented 2026-05-21 01:07:10 -05:00
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@owui-terminator[bot] commented on GitHub (Dec 24, 2025):

🔍 Similar Issues Found

I found some existing issues that might be related to this one. Please check if any of these are duplicates or contain helpful solutions:

  1. #20150 issue: Tools not included for models in channel messages
    by zhiweit • Dec 24, 2025 • bug

  2. #19864 issue:
    by Haervwe • Dec 10, 2025 • bug

  3. #19733 issue: AttributeError: 'str' object has no attribute 'get' when using Bocha search engine
    by Sorkai • Dec 04, 2025 • bug

  4. #20107 issue:
    by mengdeer589 • Dec 22, 2025 • bug

  5. #20155 issue:
    by dhaern • Dec 24, 2025 • bug

Show 5 more related issues

  1. #20019 issue:
    by j63440490 • Dec 17, 2025 • bug

  2. #19758 issue: unable to disable channels creation from regular users
    by stronk7 • Dec 04, 2025 • bug

  3. #19777 issue:
    by Yaute7 • Dec 05, 2025 • bug

  4. #19154 issue: model streaming parameter set to True, even though the setting is set to False
    by DirkRemmers • Nov 13, 2025 • bug

  5. #19563 issue:
    by naruto7g • Nov 28, 2025 • bug

💡 Tips:

  • If this is a duplicate, please consider closing this issue and adding any additional details to the existing one
  • If you found a solution in any of these issues, please share it here to help others

This comment was generated automatically by a bot. Please react with a 👍 if this comment was helpful, or a 👎 if it was not.

<!-- gh-comment-id:3689259559 --> @owui-terminator[bot] commented on GitHub (Dec 24, 2025): 🔍 **Similar Issues Found** I found some existing issues that might be related to this one. Please check if any of these are duplicates or contain helpful solutions: 1. [#20150](https://github.com/open-webui/open-webui/issues/20150) **issue: Tools not included for models in channel messages** *by zhiweit • Dec 24, 2025 • `bug`* 2. [#19864](https://github.com/open-webui/open-webui/issues/19864) **issue:** *by Haervwe • Dec 10, 2025 • `bug`* 3. [#19733](https://github.com/open-webui/open-webui/issues/19733) **issue: AttributeError: 'str' object has no attribute 'get' when using Bocha search engine** *by Sorkai • Dec 04, 2025 • `bug`* 4. [#20107](https://github.com/open-webui/open-webui/issues/20107) **issue:** *by mengdeer589 • Dec 22, 2025 • `bug`* 5. [#20155](https://github.com/open-webui/open-webui/issues/20155) **issue:** *by dhaern • Dec 24, 2025 • `bug`* <details> <summary>Show 5 more related issues</summary> 6. [#20019](https://github.com/open-webui/open-webui/issues/20019) **issue:** *by j63440490 • Dec 17, 2025 • `bug`* 7. [#19758](https://github.com/open-webui/open-webui/issues/19758) **issue: unable to disable channels creation from regular users** *by stronk7 • Dec 04, 2025 • `bug`* 8. [#19777](https://github.com/open-webui/open-webui/issues/19777) **issue:** *by Yaute7 • Dec 05, 2025 • `bug`* 9. [#19154](https://github.com/open-webui/open-webui/issues/19154) **issue: model streaming parameter set to True, even though the setting is set to False** *by DirkRemmers • Nov 13, 2025 • `bug`* 10. [#19563](https://github.com/open-webui/open-webui/issues/19563) **issue:** *by naruto7g • Nov 28, 2025 • `bug`* </details> --- 💡 **Tips:** - If this is a duplicate, please consider closing this issue and adding any additional details to the existing one - If you found a solution in any of these issues, please share it here to help others *This comment was generated automatically by a bot.* Please react with a 👍 if this comment was helpful, or a 👎 if it was not.
GiteaMirror commented 2026-05-21 01:07:10 -05:00
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@Classic298 commented on GitHub (Dec 25, 2025):

Please test the dev branch it should be fixed there.

<!-- gh-comment-id:3691159657 --> @Classic298 commented on GitHub (Dec 25, 2025): Please test the dev branch it should be fixed there.
GiteaMirror commented 2026-05-21 01:07:10 -05:00
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@Classic298 commented on GitHub (Dec 26, 2025):

presumably fixed by 5995771583

<!-- gh-comment-id:3693337490 --> @Classic298 commented on GitHub (Dec 26, 2025): presumably fixed by https://github.com/open-webui/open-webui/commit/59957715836acb635f4b1c4ddbfb4ba7b82b3281
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Reference: github-starred/open-webui#122418
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