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[GH-ISSUE #19409] issue: No connection adapters were found when generating image #34394

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opened 2026-04-25 08:21:33 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-25 08:21:33 -05:00
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Originally created by @emc2314 on GitHub (Nov 24, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/19409

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

v0.6.37

Ollama Version (if applicable)

No response

Operating System

Debian 12

Browser (if applicable)

No response

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

Generate image successfully with custom base URL served by LiteLLM.

Actual Behavior

[ERROR: No connection adapters were found for "('http://litellm-dev:8000/v1/images/generations',)"]

Steps to Reproduce

Just use docker with litellm gemini models using openai API.

fc05e0a6c5/backend/open_webui/routers/images.py (L552-L554)

Why there is a comma after the string? Removing the comma fixes the problem.

Logs & Screenshots

{
"model": "gemini-2.5-flash",
"stream": true,
"messages": [
{
"role": "system",
"content": "Image generation was attempted but failed. The system is currently unable to generate the image. Tell the user that an error occurred: [ERROR: No connection adapters were found for "('http://litellm-dev:8000/v1/images/generations',)"]"
},
{
"role": "user",
"content": "Draw me a penguin"
}
]
}

Additional Information

No response

Originally created by @emc2314 on GitHub (Nov 24, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/19409 ### 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 v0.6.37 ### Ollama Version (if applicable) _No response_ ### Operating System Debian 12 ### Browser (if applicable) _No response_ ### 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 Generate image successfully with custom base URL served by LiteLLM. ### Actual Behavior [ERROR: No connection adapters were found for \"('http://litellm-dev:8000/v1/images/generations',)\"] ### Steps to Reproduce Just use docker with litellm gemini models using openai API. https://github.com/open-webui/open-webui/blob/fc05e0a6c5d39da60b603b4d520f800d6e36f748/backend/open_webui/routers/images.py#L552-L554 Why there is a comma after the string? Removing the comma fixes the problem. ### Logs & Screenshots { "model": "gemini-2.5-flash", "stream": true, "messages": [ { "role": "system", "content": "<context>Image generation was attempted but failed. The system is currently unable to generate the image. Tell the user that an error occurred: [ERROR: No connection adapters were found for \"('http://litellm-dev:8000/v1/images/generations',)\"]</context>" }, { "role": "user", "content": "Draw me a penguin" } ] } ### Additional Information _No response_
GiteaMirror added the bug label 2026-04-25 08:21:33 -05:00
GiteaMirror commented 2026-04-25 08:21:35 -05:00
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@Classic298 commented on GitHub (Nov 24, 2025):

gemini 2.5 flash is not an image model

<!-- gh-comment-id:3569321568 --> @Classic298 commented on GitHub (Nov 24, 2025): gemini 2.5 flash is not an image model
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Reference: github-starred/open-webui#34394
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