tensorflow/models · error · ValueError

Failed to identify the task class. The provided task name is

Error message

Failed to identify the task class. The provided task name is {task_name}

What it means

Error "Failed to identify the task class. The provided task name is {task_name}" thrown in tensorflow/models.

Source

Thrown at official/nlp/serving/export_savedmodel.py:102

  export_module_cls = SERVING_MODULES.get(task.__class__, None)
  if export_module_cls is None:
    ValueError("No registered export module for the task: %s", task.__class__)
  return export_module_cls


def create_export_module(*, task_name: Text, config_file: Text,
                         serving_params: Dict[Text, Any]):
  """Creates a ExportModule."""
  task_config_cls = None
  task_cls = None
  # pylint: disable=protected-access
  for key, value in task_factory._REGISTERED_TASK_CLS.items():
    print(key.__name__)
    if task_name in key.__name__:
      task_config_cls, task_cls = key, value
      break
  if task_cls is None:
    raise ValueError("Failed to identify the task class. The provided task "
                     f"name is {task_name}")
  # pylint: enable=protected-access
  # TODO(hongkuny): Figure out how to separate the task config from experiments.

  @dataclasses.dataclass
  class Dummy(base_config.Config):
    task: task_config_cls = dataclasses.field(default_factory=task_config_cls)

  dummy_exp = Dummy()
  dummy_exp = hyperparams.override_params_dict(
      dummy_exp, config_file, is_strict=False)
  dummy_exp.task.validation_data = None
  task = task_cls(dummy_exp.task)
  model = task.build_model()
  export_module_cls = lookup_export_module(task)
  params = export_module_cls.Params(**serving_params)
  return export_module_cls(params=params, model=model)

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/nlp/serving/export_savedmodel.py:102 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/ee862f39869dd949. Report an issue: GitHub.