question about the initial_state of decoder about encoder_decoder

[JillinJia]

Hello! Could you please tell me how you ran it successfully?
Because when I ran the 'test.py' whose codes are the same as 'encoder_decoder.py' 's, there's an error I don't know how to deal with :

Traceback (most recent call last):
  File "/Users/Downloads/encoder_decoder-master/test.py", line 202, in <module>
    main()
  File "/Users/Downloads/encoder_decoder-master/test.py", line 184, in main
    en_de_model.compile(loss='categorical_crossentropy', optimizer='rmsprop')
  File "/Users/Downloads/encoder_decoder-master/keras/models.py", line 507, in compile
    self.y_train = self.get_output(train=True)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/containers.py", line 130, in get_output
    return self.layers[-1].get_output(train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 737, in get_output
    X = self.get_input(train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 241, in get_input
    previous_output = self.previous.get_output(train=train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 1148, in get_output
    X = self.get_input(train)  # (samples, timesteps, input_dim)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 241, in get_input
    previous_output = self.previous.get_output(train=train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/recurrent.py", line 168, in get_output
    X = self.get_input(train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 241, in get_input
    previous_output = self.previous.get_output(train=train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 926, in get_output
    X = self.get_input(train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/core.py", line 241, in get_input
    previous_output = self.previous.get_output(train=train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/recurrent.py", line 188, in get_output
    preprocessed_input = self.preprocess_input(X, train)
  File "/Users/Downloads/encoder_decoder-master/keras/layers/recurrent.py", line 661, in preprocess_input
    return K.concatenate([x_i, x_f, x_c, x_o], axis=2)
  File "/Users/Downloads/encoder_decoder-master/keras/backend/tensorflow_backend.py", line 267, in concatenate
    return tf.concat(axis, tensors)
  File "/Users/anaconda3/lib/python3.6/site-packages/tensorflow/python/util/dispatch.py", line 180, in wrapper
    return target(*args, **kwargs)
  File "/Users/anaconda3/lib/python3.6/site-packages/tensorflow/python/ops/array_ops.py", line 1254, in concat
    tensor_shape.scalar())
  File "/Users/anaconda3/lib/python3.6/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, ?, 5, 20) and () are incompatible

[jacoxu]

@JillinJia The backend is Theano, and the version of python is 2.7.

[UnknownXenia]

Halo!
I can't run your code also. (i've already used py2.7 and Theano as backend)
Here is the error:

You can find the C code in this temporary file: /tmp/theano_compilation_error_N1MPcz
Traceback (most recent call last):
  File "/home/xenia/GIT/encoder_decoder/encoder_decoder.py", line 6, in <module>
    from keras.models import Sequential
  File "/home/xenia/GIT/encoder_decoder/keras/models.py", line 15, in <module>
    from . import backend as K
  File "/home/xenia/GIT/encoder_decoder/keras/backend/__init__.py", line 46, in <module>
    from .theano_backend import *
  File "/home/xenia/GIT/encoder_decoder/keras/backend/theano_backend.py", line 1, in <module>
    import theano
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/__init__.py", line 110, in <module>
    from theano.compile import (
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/compile/__init__.py", line 12, in <module>
    from theano.compile.mode import *
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/compile/mode.py", line 11, in <module>
    import theano.gof.vm
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/gof/vm.py", line 674, in <module>
    from . import lazylinker_c
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/gof/lazylinker_c.py", line 140, in <module>
    preargs=args)
  File "/home/xenia/GIT/encoder_decoder/venv/local/lib/python2.7/site-packages/theano/gof/cmodule.py", line 2411, in compile_str
    (status, compile_stderr.replace('\n', '. ')))
Exception: Compilation failed (return status=1): /home/xenia/.theano/compiledir_Linux-5.8--generic-x86_64-with-Ubuntu-20.04-focal-x86_64-2.7.18-64/lazylinker_ext/mod.cpp:1:10: fatal error: Python.h: No such file or directory.     1 | #include <Python.h>.       |          ^~~~~~~~~~. compilation terminated..