[Bug] UnboundLocalError: cannot access local variable 'img_type' where it is not associated with a value during image upload

[tsah-balance]

Description

When attempting to upload an image to an Agno agent, the framework throws an UnboundLocalError indicating that the variable img_type is being referenced before it has been assigned a value. This error occurs within Agno's internal image processing code and prevents any image upload functionality from working

Steps to Reproduce

1. Create a basic Agno agent with image support
2. Attempt to upload an image using the agent
3. Error is thrown during image processing

Agent Configuration (if applicable)

 agent = Agent(
        name="Agent",
        model=Claude(id="claude-sonnet-4-20250514"),
        description=(
            ".."
        ),
        instructions=[INSTRUCTIONS],
        db=db, # Supabase DB
        add_history_to_context=True,
        num_history_runs=20,
        markdown=True,
        session_id=session_id,
        user_id=user_id,
        enable_session_summaries=True,
        # Image handling configuration
        send_media_to_model=True,  # Send images to Claude for analysis
        store_media=True,  # Persist images in database with session history
    )

Expected Behavior

The agent should:

1. Successfully accept the image input (either as a file path, URL, or base64 string)
2. Process the image internally and pass it to the underlying LLM
3. Return a response analyzing or describing the image content
4. Complete the operation without any errors

Actual Behavior

The agent fails to process the image and raises an UnboundLocalError:

ERROR    Error processing image: cannot access local variable
         'img_type' where it is not associated with a value 

Screenshots or Logs (if applicable)

No response

Environment

Agno Version: 2.2.10
Python Version: 3.11.9
Model Provider: claude-sonnet-4-20250514
Image Format:  JPEG, PNG

Possible Solutions (optional)

No response

Additional Context

• The error persists even after upgrading to the latest version of Agno
• The issue occurs with both local file paths and base64-encoded images
• Tested with different image sizes and encodings - all produce the same error
• This also happnes when using the Agno os UI (and not my custom UI)

[manu]

Thanks for reporting this @tsah-balance. We have a fix and will try to release it asap!