tensorflow/models · error · ValueError

checkpoint_path cannot be empty.

Error message

checkpoint_path cannot be empty.

What it means

Error "checkpoint_path cannot be empty." thrown in tensorflow/models.

Source

Thrown at official/legacy/detection/main.py:159

        model_fn=_model_fn,
        loss_fn=model_builder.build_loss_fn,
        is_multi_host=is_multi_host,
        predict_post_process_fn=model_builder.post_processing,
        trainable_variables_filter=model_builder
        .make_filter_trainable_variables_fn())

    if mode == 'eval':
      results = dist_executor.evaluate_from_model_dir(
          model_dir=params.model_dir,
          eval_input_fn=eval_input_fn,
          eval_metric_fn=model_builder.eval_metrics,
          eval_timeout=params.eval.eval_timeout,
          min_eval_interval=params.eval.min_eval_interval,
          total_steps=params.train.total_steps)
    else:
      # Run evaluation once for a single checkpoint.
      if not checkpoint_path:
        raise ValueError('checkpoint_path cannot be empty.')
      if tf.io.gfile.isdir(checkpoint_path):
        checkpoint_path = tf.train.latest_checkpoint(checkpoint_path)
      summary_writer = executor.SummaryWriter(params.model_dir, 'eval')
      results, _ = dist_executor.evaluate_checkpoint(
          checkpoint_path=checkpoint_path,
          eval_input_fn=eval_input_fn,
          eval_metric_fn=model_builder.eval_metrics,
          summary_writer=summary_writer)
    for k, v in results.items():
      logging.info('Final eval metric %s: %f', k, v)
    return results
  else:
    raise ValueError('Mode not found: %s.' % mode)


def run(callbacks=None):
  """Runs the experiment."""
  keras_utils.set_session_config(enable_xla=FLAGS.enable_xla)

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/legacy/detection/main.py:159 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/389030009e78228e. Report an issue: GitHub.