RuntimeError in DataAnalyzer

[KumoLiu]

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/opt/monai/monai/apps/auto3dseg/data_analyzer.py", line 343, in _get_all_case_stats
    d = summarizer(batch_data)
  File "/opt/monai/monai/transforms/compose.py", line 335, in __call__
    result = execute_compose(
  File "/opt/monai/monai/transforms/compose.py", line 111, in execute_compose
    data = apply_transform(
  File "/opt/monai/monai/transforms/transform.py", line 171, in apply_transform
    raise RuntimeError(f"applying transform {transform}") from e
RuntimeError: applying transform <monai.auto3dseg.analyzer.LabelStats object at 0x7f32446f3610>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/monai/monai/transforms/transform.py", line 141, in apply_transform
    return _apply_transform(transform, data, unpack_items, lazy, overrides, log_stats)
  File "/opt/monai/monai/transforms/transform.py", line 98, in _apply_transform
    return transform(data, lazy=lazy) if isinstance(transform, LazyTrait) else transform(data)
  File "/opt/monai/monai/auto3dseg/analyzer.py", line 486, in __call__
    label_dict[LabelStatsKeys.IMAGE_INTST] = [
  File "/opt/monai/monai/auto3dseg/analyzer.py", line 487, in <listcomp>
    self.ops[LabelStatsKeys.IMAGE_INTST].evaluate(nda_m) for nda_m in nda_masks
  File "/opt/monai/monai/auto3dseg/operations.py", line 94, in evaluate
    ret = super().evaluate(data, **kwargs)
  File "/opt/monai/monai/auto3dseg/operations.py", line 41, in evaluate
    return {k: v(data, **kwargs) for k, v in self.data.items() if callable(v)}
  File "/opt/monai/monai/auto3dseg/operations.py", line 41, in <dictcomp>
    return {k: v(data, **kwargs) for k, v in self.data.items() if callable(v)}
  File "/opt/monai/monai/transforms/utils_pytorch_numpy_unification.py", line 461, in max
    ret = np.max(x, **kwargs) if isinstance(x, (np.ndarray, list)) else torch.max(x, **kwargs)  # type: ignore
  File "/opt/monai/monai/data/meta_tensor.py", line 282, in __torch_function__
    ret = super().__torch_function__(func, types, args, kwargs)
  File "/usr/local/lib/python3.10/dist-packages/torch/_tensor.py", line 1301, in __torch_function__
    ret = func(*args, **kwargs)
RuntimeError: max(): Expected reduction dim to be specified for input.numel() == 0. Specify the reduction dim with the 'dim' argument.