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hermes - 💡(How to fix) Fix AttributeError: 'NoneType' object has no 'channel_prompt' attribute [1 pull requests]

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Error Message

AttributeError: 'NoneType' object has no 'channel_prompt' attribute

Root Cause

  1. Feishu adapter (gateway/platforms/feishu.py): The MessageEvent is created without passing channel_prompt parameter (lines 2800-2814), unlike Discord/Telegram adapters that have explicit channel_prompt handling.

  2. Direct attribute access: Code assumes event is never None, but some platforms (Feishu) may create incomplete MessageEvent objects.

Fix Action

Fixed

Code Example

AttributeError: 'NoneType' object has no 'channel_prompt' attribute

---

channel_prompt=getattr(event, 'channel_prompt', None)
RAW_BUFFERClick to expand / collapse

Bug Description

When Hermes processes some messages (particularly from Feishu platform), it throws:

AttributeError: 'NoneType' object has no 'channel_prompt' attribute

Steps to Reproduce

  1. Start Hermes with Feishu adapter enabled
  2. Send a message (particularly at 15:30-16:00 for closing market operations)
  3. Agent fails with the above error

Error Location

The error occurs in multiple locations in gateway/run.py where event.channel_prompt is accessed directly without null checking:

FileLineCode
gateway/run.py5226channel_prompt=event.channel_prompt
gateway/run.py5253channel_prompt=event.channel_prompt
gateway/run.py5275channel_prompt=event.channel_prompt
gateway/run.py6658channel_prompt=event.channel_prompt
gateway/run.py8309channel_prompt=event.channel_prompt
gateway/run.py8406channel_prompt=event.channel_prompt

Root Cause

  1. Feishu adapter (gateway/platforms/feishu.py): The MessageEvent is created without passing channel_prompt parameter (lines 2800-2814), unlike Discord/Telegram adapters that have explicit channel_prompt handling.

  2. Direct attribute access: Code assumes event is never None, but some platforms (Feishu) may create incomplete MessageEvent objects.

Suggested Fix

  1. Add null check before accessing event.channel_prompt:

    channel_prompt=getattr(event, 'channel_prompt', None)

  2. Or use Optional pattern in function signatures with proper defaults.

Environment

  • Hermes version: Latest (hermes-agent submodule)
  • Platform: Feishu
  • Python environment

Reported by: Benson

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#model download#tokenizer error#prompt formatting#chain error#conversation history

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hermes - 💡(How to fix) Fix AttributeError: 'NoneType' object has no 'channel_prompt' attribute [1 pull requests]