tensorflow/models · error · ValueError

It is unexpected that `tfds_builder` is None and there is al

Error message

It is unexpected that `tfds_builder` is None and there is also no `files`.

What it means

Error "It is unexpected that `tfds_builder` is None and there is also no `files`." thrown in tensorflow/models.

Source

Thrown at official/core/input_reader.py:418

              files,
              dataset_fn,
              input_context,
              seed=self._seed,
              is_training=self._is_training,
              sharding=self._sharding,
              cache=self._cache,
              cycle_length=self._cycle_length,
              block_length=self._block_length,
              deterministic=self._deterministic)
      elif len(files) == 1:
        return _read_files_then_shard(
            files,
            dataset_fn,
            input_context,
            sharding=self._sharding,
            repeat=self._is_training and not self._cache)
      else:
        raise ValueError('It is unexpected that `tfds_builder` is None and '
                         'there is also no `files`.')

    if self._tfds_name:
      if isinstance(self._tfds_name, cfg.base_config.Config):
        dataset = {}
        for k, tfds_name in self._tfds_name.as_dict().items():
          dataset[k] = _read_tfds(
              tfds_name=tfds_name,
              tfds_data_dir=self._tfds_data_dir,
              tfds_split=self._tfds_split,
              tfds_skip_decoding_feature=self._tfds_skip_decoding_feature,
              tfds_as_supervised=self._tfds_as_supervised,
              input_context=input_context,
              seed=self._seed,
              is_training=self._is_training,
              cache=self._cache,
              cycle_length=self._cycle_length,
              block_length=self._block_length)

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/core/input_reader.py:418 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/4db6c40e5641df4f. Report an issue: GitHub.