iflytek/astron-agent · error · CustomExceptionCD

CODE_EXECUTION_ERROR

CODE_EXECUTION_ERROR

Error message

self._remove_traceback_stdin_line(resp_message)

What it means

CODE_EXECUTION_ERROR raised when the iFly v2 code service returns type == 'exec_code_failed'. The err_msg is the service's response message passed through _remove_traceback_stdin_line, which strips the noisy stdin line from the traceback so the message reflects the actual exception in the user's code.

Solutions

1. Read the err_msg traceback in the workflow run detail; it shows the exact line and exception in the user code.
2. Fix the bug in the code-node script (missing import, wrong variable name, unhandled None/empty input).
3. Guard inputs from upstream nodes (check for None/empty before indexing) since node failures can feed incomplete data.
4. Verify required packages exist in the sandbox image or vendor/declare the dependency.

Example fix

# before (user code)
result = data["total"] / count
// after
total = data.get("total", 0)
if not count:
    result = 0
else:
    result = total / count

# guard upstream inputs the code node will consume
assert isinstance(variable_pool.get("data"), dict) and variable_pool.get("data"), "upstream data missing before code node"

def is_safe_name(code: str) -> bool:
    import ast
    try:
        ast.parse(code)
        return True
    except SyntaxError:
        return False

try:
    output = await executor.execute(...)
except CustomExceptionCD as e:
    if e.err_code == CodeEnum.CODE_EXECUTION_ERROR.code:
        logger.error("user code failed: %s", e.err_msg)  # err_msg carries cleaned traceback
        output = error_placeholder

When it happens

Trigger: The user code inside a code node raised an unhandled exception (NameError, KeyError, ImportError, syntax error, division by zero, etc.) and the sandbox reported exec_code_failed with the Python traceback as the message.

Common situations: Typos or missing imports in code-node scripts; assuming an upstream variable exists when the producing node failed or renamed an output; dependency unavailable inside the sandbox; calling code with wrong variable types from the workflow.

Related errors

• ENG_PROTOCOL_VALIDATE_ERROR
• Failed to convert literal value
• VARIABLE_POOL_SET_PARAMETER_ERROR
• VARIABLE_POOL_GET_PARAMETER_ERROR
• get variable error

AI-assisted analysis of iflytek/astron-agent@5e758547a8 (2026-09-12). Data as JSON: /api/errors/f3cb08d750e0ea48. Report an issue: GitHub.

Appendix: source

Thrown at core/workflow/engine/nodes/code/executor/ifly/ifly_executor_v2.py:143

        Handle error response and raise appropriate exception.

        :param resp_json: Response json dictionary
        :param span: Tracing span for logging
        :raises CustomExceptionCD: Based on error type
        """

        err_type = resp_json.get("type", "")
        resp_message = resp_json.get("message", "")
        span.add_error_event(f"err_type: {err_type}")
        span.add_error_event(f"response message: {resp_message}")

        if err_type == "exec_code_timeout":
            raise CustomExceptionCD(
                err_code=CodeEnum.CODE_EXECUTION_TIMEOUT_ERROR.code,
                err_msg="Code execution timeout",
            )
        elif err_type == "exec_code_failed":
            raise CustomExceptionCD(
                err_code=CodeEnum.CODE_EXECUTION_ERROR.code,
                err_msg=self._remove_traceback_stdin_line(resp_message),
            )
        else:
            raise CustomExceptionCD(
                err_code=CodeEnum.CODE_EXECUTION_ERROR.code,
                err_msg="Code execution failed",
            )

    def _remove_traceback_stdin_line(self, traceback_str: str) -> str:
        """
        Remove traceback line with V2-specific preprocessing.

        Extends parent method by first extracting error message after
        'exec code error:' prefix before removing stdin traceback line.

        :param traceback_str: String containing traceback information
        :return: String with the specified traceback line removed

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