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Each node type throws specific error classes that help you understand what went wrong and how to fix it.

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Node-specific errors

  • Code
  • LLM
  • HTTP Request
  • Tool
CodeNodeError
Your Python or JavaScript code threw an exception during execution
Code ErrorOutputValidationError
The data type your code returned doesn’t match the output variable type you configured
DepthLimitError
Your code created nested data structures deeper than 5 levels
CodeExecutionError
The sandbox service couldn’t execute your code - usually means the service is down

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System-level errors

InvokeConnectionError
Network connection failed to the external service
 InvokeServerUnavailableError
External service returned a 503 status or is temporarily down
 InvokeRateLimitError
You’ve hit rate limits on the API or model provider
 QuotaExceededError
Your usage quota has been exceeded for this service