请问这个是怎么回事？
File "glow.py", line 210, in
epochs=1000)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training.py", line 1297, in fit_generator
steps_name='steps_per_epoch')
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training_generator.py", line 265, in model_iteration
batch_outs = batch_function(*batch_data)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training.py", line 973, in train_on_batch
class_weight=class_weight, reset_metrics=reset_metrics)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training_v2_utils.py", line 264, in train_on_batch
output_loss_metrics=model._output_loss_metrics)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training_eager.py", line 311, in train_on_batch
output_loss_metrics=output_loss_metrics))
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training_eager.py", line 252, in _process_single_batch
training=training))
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/training_eager.py", line 127, in _model_loss
outs = model(inputs, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/base_layer.py", line 891, in call
outputs = self.call(cast_inputs, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/network.py", line 708, in call
convert_kwargs_to_constants=base_layer_utils.call_context().saving)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/network.py", line 860, in _run_internal_graph
output_tensors = layer(computed_tensors, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/base_layer.py", line 842, in call
outputs = call_fn(cast_inputs, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/base_layer.py", line 2484, in call
return self._make_op(inputs)
File "/usr/local/lib/python3.6/dist-packages/tensorflow_core/python/keras/engine/base_layer.py", line 2494, in _make_op
graph = inputs[0].graph
IndexError: list index out of range
terminate called without an active exception
Aborted (core dumped)
可能是python和keras版本不对（python 2.7，keras 2.2.4）
我也有这个问题，NICE能完美跑，glow就不行，compile也能过，fit时就不行
bojone
