tensorflow/models · error · ValueError

Expected input and output states to be the same. Got extra s

Error message

Expected input and output states to be the same. Got extra states {}, expected {}

What it means

Error "Expected input and output states to be the same. Got extra states {}, expected {}" thrown in tensorflow/models.

Source

Thrown at official/projects/movinet/modeling/movinet_model.py:126

      states: a dict of model states.
    """
    state_specs = state_specs if state_specs is not None else {}

    states = {
        name: tf_keras.Input(shape=spec.shape[1:], dtype=spec.dtype, name=name)
        for name, spec in state_specs.items()
    }
    image = tf_keras.Input(shape=input_specs['image'].shape[1:], name='image')
    inputs = {**states, 'image': image}

    if backbone.use_external_states:
      before_states = states
      endpoints, states = backbone(inputs)
      after_states = states

      new_states = set(after_states) - set(before_states)
      if new_states:
        raise ValueError(
            'Expected input and output states to be the same. Got extra states '
            '{}, expected {}'.format(new_states, set(before_states)))

      mismatched_shapes = {}
      for name in after_states:
        before_shape = before_states[name].shape
        after_shape = after_states[name].shape
        if len(before_shape) != len(after_shape):
          mismatched_shapes[name] = (before_shape, after_shape)
          continue
        for before, after in zip(before_shape, after_shape):
          if before is not None and after is not None and before != after:
            mismatched_shapes[name] = (before_shape, after_shape)
            break
      if mismatched_shapes:
        raise ValueError(
            'Got mismatched input and output state shapes: {}'.format(
                mismatched_shapes))

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/projects/movinet/modeling/movinet_model.py:126 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/33072aa2c7667f2d. Report an issue: GitHub.