InvalidArgumentError (see above for traceback): assertion failed: [Expected shape for Tensor rnn/sequence_length:0 is ] [20] [ but saw shape: ] [8]

[vuthithao]

Hello!
Thank you for sharing your code!
I have some wrong with that code when run file attention.py . I replaced FreeRunIm2LatexAttention by im2latexAttention.
My error:
InvalidArgumentError (see above for traceback): assertion failed: [Expected shape for Tensor rnn/sequence_length:0 is ] [20] [ but saw shape: ] [8]
I don't know what is wrong and how can I fix it. Can you help me, please? Thanks

Fulll:
Traceback (most recent call last):
File "attention.py", line 157, in
_ , _loss = sess.run([train_step,loss],feed_dict={X:train_img,seqs:train_seq,mask:train_mask,learn_rate:lr})
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 929, in run
run_metadata_ptr)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 1152, in _run
feed_dict_tensor, options, run_metadata)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 1328, in _do_run
run_metadata)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/client/session.py", line 1348, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InvalidArgumentError: assertion failed: [Expected shape for Tensor rnn/sequence_length:0 is ] [20] [ but saw shape: ] [8]
[[node rnn/Assert/Assert (defined at /root/im2latex-tensorflow/tflib/ops.py:533) = Assert[T=[DT_STRING, DT_INT32, DT_STRING, DT_INT32], summarize=3, _device="/job:localhost/replica:0/task:0/device:CPU:0"](rnn/All/_99, rnn/Assert/Assert/data_0, rnn/stack/_101, rnn/Assert/Assert/data_2, rnn/Shape_1/_103)]]
[[{{node rnn/while/PyFunc/_278}} = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device_incarnation=1, tensor_name="edge_2593_rnn/while/PyFunc", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:GPU:0"]]

Caused by op u'rnn/Assert/Assert', defined at:
File "attention.py", line 37, in
out,state = tflib.ops.im2latexAttention('AttLSTM',emb_seqs,ctx,EMB_DIM,ENC_DIM,DEC_DIM,D,H,W)
File "/root/im2latex-tensorflow/tflib/ops.py", line 533, in im2latexAttention
out = tf.nn.dynamic_rnn(cell, inputs, initial_state=h0_dec, sequence_length=seq_len, swap_memory=True)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/rnn.py", line 651, in dynamic_rnn
[_assert_has_shape(sequence_length, [batch_size])]):
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/rnn.py", line 646, in _assert_has_shape
packed_shape, " but saw shape: ", x_shape])
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/util/tf_should_use.py", line 189, in wrapped
return _add_should_use_warning(fn(*args, **kwargs))
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/control_flow_ops.py", line 159, in Assert
return gen_logging_ops._assert(condition, data, summarize, name="Assert")
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/gen_logging_ops.py", line 52, in _assert
name=name)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/op_def_library.py", line 787, in _apply_op_helper
op_def=op_def)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/util/deprecation.py", line 488, in new_func
return func(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 3274, in create_op
op_def=op_def)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 1770, in init
self._traceback = tf_stack.extract_stack()

InvalidArgumentError (see above for traceback): assertion failed: [Expected shape for Tensor rnn/sequence_length:0 is ] [20] [ but saw shape: ] [8]
[[node rnn/Assert/Assert (defined at /root/im2latex-tensorflow/tflib/ops.py:533) = Assert[T=[DT_STRING, DT_INT32, DT_STRING, DT_INT32], summarize=3, _device="/job:localhost/replica:0/task:0/device:CPU:0"](rnn/All/_99, rnn/Assert/Assert/data_0, rnn/stack/_101, rnn/Assert/Assert/data_2, rnn/Shape_1/_103)]]
[[{{node rnn/while/PyFunc/_278}} = _Recvclient_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device_incarnation=1, tensor_name="edge_2593_rnn/while/PyFunc", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:GPU:0"]]

[Nasrin15]

@vuthithao Hello did you find solution for this error?