> ## 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**](../modules/protocols) module.

<Badge color="blue">AI Agent</Badge>

Base exception for knowledge backend errors.

## Source

<Card title="View on GitHub" icon="github" href="https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/knowledge/protocols.py#L185">
  `praisonaiagents/knowledge/protocols.py` at line 185
</Card>

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## Related Documentation

<CardGroup cols={2}>
  <Card title="Knowledge Concept" icon="book" href="/docs/docs/concepts/knowledge" />

  <Card title="Knowledge Overview" icon="database" href="/docs/docs/knowledge/overview" />

  <Card title="Knowledge Configuration" icon="gear" href="/docs/docs/configuration/knowledge-config" />

  <Card title="Chat with PDF" icon="file-pdf" href="/docs/docs/knowledge/chat-with-pdf" />
</CardGroup>