tensorflow/models · error · ValueError

`max_distance` must not be negative.

Error message

`max_distance` must not be negative.

What it means

Error "`max_distance` must not be negative." thrown in tensorflow/models.

Source

Thrown at official/projects/triviaqa/inputs.py:229

      output from this generator.
    left_pad_value: Integer id for all positions at or beyond max_distance to
      the left.
    right_pad_value: Integer id for all positions at or beyond max_distance to
      the right.
  """

  def __init__(self, max_distance: int, ignore_direction: bool = False):
    """Init.

    Args:
      max_distance: The maximum distance to represent. Must not be negative. All
        larger distances will be clipped to this value.
      ignore_direction: If True, both left and right position representations
        will have the same ids based on absolute distance (resulting in
        symmetric ids around the center token).
    """
    if max_distance < 0:
      raise ValueError('`max_distance` must not be negative.')
    self.max_distance = max_distance
    self.ignore_direction = ignore_direction

    self.right_pad_value = max_distance
    self.left_pad_value = max_distance if ignore_direction else 2 * max_distance

    # 0 is the first id, so vocab size is 1 + the largest id (left pad value).
    self.relative_vocab_size = self.left_pad_value + 1

  def make_relative_att_ids(self,
                            seq_len: Union[int, tf.Tensor],
                            batch_size: Optional[Union[int, tf.Tensor]] = 1,
                            name: Optional[Text] = None) -> tf.Tensor:
    """Makes relative position ids for full self-attention.

    For example, if `max_distance` is 3, `ignore_direction` is False, `seq_len`
    is 6, and `batch_size` is 1, the result is the following:
      [[

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/projects/triviaqa/inputs.py:229 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tensorflow/models@e006f5f0d5 (2026-08-24). Data as JSON: /api/errors/fc09ec22d8ddf477. Report an issue: GitHub.