ValueError: Shapes (4, 100, 50) and () are incompatible源程序报错

[yezhaoguli]

Traceback (most recent call last):
File "Sentiment_lstm.py", line 204, in
lstm_predict(string)
File "Sentiment_lstm.py", line 178, in lstm_predict
model = model_from_yaml(yaml_string)
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/models.py", line 187, in model_from_yaml
return layer_from_config(config, custom_objects=custom_objects)
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/utils/layer_utils.py", line 36, in layer_from_config
return layer_class.from_config(config['config'])
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/models.py", line 1036, in from_config
model.add(layer)
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/models.py", line 312, in add
output_tensor = layer(self.outputs[0])
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/engine/topology.py", line 487, in call
self.build(input_shapes[0])
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/layers/recurrent.py", line 710, in build
self.W = K.concatenate([self.W_i, self.W_f, self.W_c, self.W_o])
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/keras/backend/tensorflow_backend.py", line 718, in concatenate
return tf.concat(axis, [to_dense(x) for x in tensors])
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/tensorflow/python/util/dispatch.py", line 180, in wrapper
return target(*args, **kwargs)
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/tensorflow/python/ops/array_ops.py", line 1254, in concat
tensor_shape.scalar())
File "/home/user/anaconda3/envs/gu_py27/lib/python2.7/site-packages/tensorflow/python/framework/tensor_shape.py", line 1023, in assert_is_compatible_with
raise ValueError("Shapes %s and %s are incompatible" % (self, other))
ValueError: Shapes (4, 100, 50) and () are incompatible