> ## Documentation Index
> Fetch the complete documentation index at: https://praison.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Knowledge Backend Error • AI Agent SDK

> KnowledgeBackendError: Base exception for knowledge backend errors.

# KnowledgeBackendError

> Defined in the [**protocols**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/protocols.md) module.

AI Agent

Base exception for knowledge backend errors.

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/knowledge/protocols.py#L185)
>
> `praisonaiagents/knowledge/protocols.py` at line 185

***

## Related Documentation

> [card] [Knowledge Concept](https://praison.ai/docs/docs/concepts/knowledge)

> [card] [Knowledge Overview](https://praison.ai/docs/docs/knowledge/overview)

> [card] [Knowledge Configuration](https://praison.ai/docs/docs/configuration/knowledge-config)

> [card] [Chat with PDF](https://praison.ai/docs/docs/knowledge/chat-with-pdf)


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