type matching error in tensor - numpy

Question

I am following a Tensorflow example. However, running the code gives me the following error message.
It seems to me that the following code segment causes the problem. Or the last dimension of h_conv10 has float64. But there is no place where float64 is setup explicitly. Thank you for the suggestions and hints.
# Deconvolution 1
W_deconv_1 = weight_variable_devonc([max_pool_size, max_pool_size, 8*chanel_root, 16*chanel_root])
b_deconv1 = bias_variable([8*chanel_root])
h_deconv1 = tf.nn.relu(deconv2d(h_conv10, W_deconv_1, max_pool_size) + b_deconv1)
h_deconv1_concat = crop_and_concat(h_conv8,h_deconv1,[n_image,(((nx-180)/2+4)/2+4)/2+4,(((ny-180)/2+4)/2+4)/2+4,8*chanel_root])
python u-net.py
Traceback (most recent call last):
File "/experiment/tfw/lib/python3.4/site-
packages/tensorflow/python/ops/op_def_library.py", line 377, in apply_op
as_ref=input_arg.is_ref)
File "/experiment/tfw/lib/python3.4/site-
packages/tensorflow/python/framework/ops.py", line 608, in convert_n_to_tensor
ret.append(convert_to_tensor(value, dtype=dtype, name=n, as_ref=as_ref))
File "/experiment/tfw/lib/python3.4/site-
packages/tensorflow/python/framework/ops.py", line 566, in convert_to_tensor
ret = conversion_func(value, dtype=dtype, name=name, as_ref=as_ref)
File "/experiment/tfw/lib/python3.4/site-
packages/tensorflow/python/framework/ops.py", line 510, in
_TensorTensorConversionFunction
% (dtype.name, t.dtype.name, str(t)))
ValueError: Tensor conversion requested dtype int32 for Tensor with dtype
float64: 'Tensor("truediv:0", shape=(), dtype=float64)'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "u-net.py", line 193, in <module>
h_deconv1 = tf.nn.relu(deconv2d(h_conv10, W_deconv_1, max_pool_size) + b_deconv1)
File "u-net.py", line 77, in deconv2d
output_shape = tf.pack([tf.shape(x)[0], tf.shape(x)[1]*2, tf.shape(x)[2]*2, tf.shape(x)[3]/2])
File "/experiment/tfw/lib/python3.4/site-packages/tensorflow/python/ops/array_ops.py", line 241, in pack
return gen_array_ops._pack(values, name=name)
File "/experiment/tfw/lib/python3.4/site-packages/tensorflow/python/ops/gen_array_ops.py", line 916, in _pack
return _op_def_lib.apply_op("Pack", values=values, name=name)
File "/experiment/tfw/lib/python3.4/site-packages/tensorflow/python/ops/op_def_library.py", line 396, in apply_op
raise TypeError("%s that don't all match." % prefix)
TypeError: Tensors in list passed to 'values' of 'Pack' Op have types [int32, int32, int32, float64] that don't all match.