TypeError：while_loop（）在Jupyter Azure中获得了意外的关键字参数'maximum_iterations'

Question

我正在Azure中设置循环神经网络：

model = Sequential()


model.add(GRU(units=512,
                return_sequences=True,
                input_shape=(None, x1,)))

  model.add(Dense(y1, activation='sigmoid'))

但是我得到了错误：

TypeError: while_loop() got an unexpected keyword argument 'maximum_iterations'

我不是cretin，但我相信我可能正在做一些在当前版本的TensorFlow＆Keras中已经过时的折旧，因为在此示例中发生了类似的错误，并指出了此类错误。我正在Jupyter Azure平台中使用Python 3.6，这也意味着我不确定我正在使用哪个版本的Keras和TensoFlow。

我完整的Tracback错误消息是：

TypeError                                 Traceback (most recent call last)
<ipython-input-7-e6bcba2d0346> in <module>()
    205 model.add(GRU(units=512, return_sequences=True,
--> 207                 input_shape=(None,x1,)))
    208 

~/anaconda3_501/lib/python3.6/site-packages/keras/engine/sequential.py in add(self, layer)
    164                     # and create the node connecting the current layer
    165                     # to the input layer we just created.
--> 166                     layer(x)
    167                     set_inputs = True
    168                 else:

~/anaconda3_501/lib/python3.6/site-packages/keras/layers/recurrent.py in __call__(self, inputs, initial_state, constants, **kwargs)
    498 
    499         if initial_state is None and constants is None:
--> 500             return super(RNN, self).__call__(inputs, **kwargs)
    501 
    502         # If any of `initial_state` or `constants` are specified and are Keras

~/anaconda3_501/lib/python3.6/site-packages/keras/engine/base_layer.py in __call__(self, inputs, **kwargs)
    458             # Actually call the layer,
    459             # collecting output(s), mask(s), and shape(s).
--> 460             output = self.call(inputs, **kwargs)
    461             output_mask = self.compute_mask(inputs, previous_mask)
    462 

~/anaconda3_501/lib/python3.6/site-packages/keras/layers/recurrent.py in call(self, inputs, mask, training, initial_state)
   1587                                      mask=mask,
   1588                                      training=training,
-> 1589                                      initial_state=initial_state)
   1590 
   1591     @property

~/anaconda3_501/lib/python3.6/site-packages/keras/layers/recurrent.py in call(self, inputs, mask, training, initial_state, constants)
    607                                              mask=mask,
    608                                              unroll=self.unroll,
--> 609                                              input_length=timesteps)
    610         if self.stateful:
    611             updates = []

~/anaconda3_501/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py in rnn(step_function, inputs, initial_states, go_backwards, mask, constants, unroll, input_length)
   2955             parallel_iterations=32,
   2956             swap_memory=True,
-> 2957             maximum_iterations=input_length)
   2958         last_time = final_outputs[0]
   2959         output_ta = final_outputs[1]

TypeError: while_loop() got an unexpected keyword argument 'maximum_iterations'

我还从本教程中学到了WARNING:tensorflow:From keep_dims is deprecated, use keepdims instead。如果这是有效的，我该怎么办？

这也许有些直截了当，但我很困惑，对此的帮助将不胜感激。

Answer 1

!pip uninstall keras
!pip install keras==2.1.2

现在就可以了