keras-team/keras · error · ValueError

Operation must be 'min' or 'max', received {operation}

Error message

Operation must be 'min' or 'max', received {operation}

What it means

Error "Operation must be 'min' or 'max', received {operation}" thrown in keras-team/keras.

Source

Thrown at keras/src/backend/openvino/numpy.py:163

            False,
        ).output(0)

    return OpenVINOKerasTensor(result)


def max(x, axis=None, keepdims=False, initial=None):
    return _compute_extrema(x, "max", axis, keepdims, initial)


def _compute_extrema(x, operation, axis=None, keepdims=False, initial=None):
    if operation == "min":
        reduction_op = ov_opset.reduce_min
        elementwise_op = ov_opset.minimum
    elif operation == "max":
        reduction_op = ov_opset.reduce_max
        elementwise_op = ov_opset.maximum
    else:
        raise ValueError(
            f"Operation must be 'min' or 'max', received {operation}"
        )

    x = get_ov_output(x)
    x_type = x.get_element_type()
    x_for_rank = x

    is_bool = x_type == Type.boolean
    if is_bool:
        x = ov_opset.convert(x, Type.i32).output(0)
        x_type = Type.i32

    if isinstance(axis, tuple) and len(axis) == 0:
        return OpenVINOKerasTensor(x)

    was_axis_none = axis is None
    x, axis = _resolve_axis(x, axis)

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/backend/openvino/numpy.py:163 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of keras-team/keras@7a34a03db6 (2026-08-25). Data as JSON: /api/errors/c15faa4d9332bed4. Report an issue: GitHub.