BerriAI/litellm · error · ValueError

No data sources found for Knowledge Base {self.knowledge_bas

Error message

No data sources found for Knowledge Base {self.knowledge_base_id}. Please create a data source first or provide data_source_id and s3_bucket.

What it means

Auto-detection dead end in the Bedrock ingestion flow: an existing knowledge_base_id was supplied, but listing its data sources via bedrock-agent returned none (and no data_source_id/s3_bucket were provided), so there is no target to ingest into. Create a data source on the KB in AWS or pass data_source_id and s3_bucket explicitly.

Source

Thrown at litellm/rag/ingestion/bedrock_ingestion.py:150

            self._auto_detect_config()
        else:
            # No KB provided - create everything from scratch
            await self._create_knowledge_base_infrastructure()

        self._config_initialized = True

    def _auto_detect_config(self):
        """Auto-detect data source ID and S3 bucket from existing Knowledge Base."""
        verbose_logger.debug("Auto-detecting data source and S3 bucket for KB=%s", self.knowledge_base_id)

        bedrock_agent: Final = self._get_boto3_client("bedrock-agent")

        # List data sources for this KB
        ds_response: Final = bedrock_agent.list_data_sources(knowledgeBaseId=self.knowledge_base_id)
        data_sources: Final = ds_response.get("dataSourceSummaries", [])

        if not data_sources:
            raise ValueError(
                f"No data sources found for Knowledge Base {self.knowledge_base_id}. "
                "Please create a data source first or provide data_source_id and s3_bucket."
            )

        # Use first data source (or user-provided override)
        if self._data_source_id:
            self.data_source_id = self._data_source_id
        else:
            self.data_source_id = data_sources[0]["dataSourceId"]
            verbose_logger.info("Auto-detected data source: %s", self.data_source_id)

        # Get data source details for S3 bucket
        ds_details: Final = bedrock_agent.get_data_source(
            knowledgeBaseId=self.knowledge_base_id,
            dataSourceId=self.data_source_id,
        )

        s3_config = ds_details.get("dataSource", {}).get("dataSourceConfiguration", {}).get("s3Configuration", {})

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Create a data source for the Knowledge Base first, or pass data_source_id and s3_bucket in the config.

When it happens

Trigger: Thrown at litellm/rag/ingestion/bedrock_ingestion.py:150 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@77b7c6c40c (2026-08-18). Data as JSON: /api/errors/efc465c16871811d. Report an issue: GitHub.