Hello @suho_ryo 

Good day!!

as per the error : You need to inspect the data in the table you are trying to import and ensure that every entry in each column strictly follows the required data types and JSON formatting. The documentation for Agent Bricks confirms that the table must have this specific schema for the import to work correctly.

https://docs.databricks.com/aws/en/generative-ai/agent-bricks/knowledge-assistant 

here is the video for the same: https://www.youtube.com/watch?v=UGL28vHJhTo 

check why you are having a boolean value in your dataset.