tensorflow/models · error · ValueError

Unknown decoder type: {}!

Error message

Unknown decoder type: {}!

What it means

Error "Unknown decoder type: {}!" thrown in tensorflow/models.

Source

Thrown at official/projects/centernet/tasks/centernet.py:60

  """Task definition for centernet."""

  def build_inputs(self,
                   params: exp_cfg.DataConfig,
                   input_context: Optional[tf.distribute.InputContext] = None):
    """Build input dataset."""
    if params.tfds_name:
      decoder = tfds_factory.get_detection_decoder(params.tfds_name)
    else:
      decoder_cfg = params.decoder.get()
      if params.decoder.type == 'simple_decoder':
        decoder = tf_example_decoder.TfExampleDecoder(
            regenerate_source_id=decoder_cfg.regenerate_source_id)
      elif params.decoder.type == 'label_map_decoder':
        decoder = tf_example_label_map_decoder.TfExampleDecoderLabelMap(
            label_map=decoder_cfg.label_map,
            regenerate_source_id=decoder_cfg.regenerate_source_id)
      else:
        raise ValueError('Unknown decoder type: {}!'.format(
            params.decoder.type))

    parser = centernet_input.CenterNetParser(
        output_height=self.task_config.model.input_size[0],
        output_width=self.task_config.model.input_size[1],
        max_num_instances=self.task_config.model.max_num_instances,
        bgr_ordering=params.parser.bgr_ordering,
        channel_means=params.parser.channel_means,
        channel_stds=params.parser.channel_stds,
        aug_rand_hflip=params.parser.aug_rand_hflip,
        aug_scale_min=params.parser.aug_scale_min,
        aug_scale_max=params.parser.aug_scale_max,
        aug_rand_hue=params.parser.aug_rand_hue,
        aug_rand_brightness=params.parser.aug_rand_brightness,
        aug_rand_contrast=params.parser.aug_rand_contrast,
        aug_rand_saturation=params.parser.aug_rand_saturation,
        odapi_augmentation=params.parser.odapi_augmentation,
        dtype=params.dtype)

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/projects/centernet/tasks/centernet.py:60 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/b11d5081368fe79d. Report an issue: GitHub.