Error occur when execute "python3 aster/demo.py

[billqxg]

Traceback (most recent call last):
File "aster/demo.py", line 92, in
tf.app.run()
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/platform/app.py", line 126, in run
_sys.exit(main(argv))
File "aster/demo.py", line 55, in main
predictions_dict = model.predict(tf.expand_dims(resized_image_tensor, 0))
File "/home/abc/Projects/aster/meta_architectures/multi_predictors_recognition_model.py", line 51, in predict
predictor_outputs = predictor.predict(feature_maps, scope='{}/Predictor'.format(name))
File "/home/abc/Projects/aster/predictors/attention_predictor.py", line 74, in predict
maximum_iterations=self._max_num_steps
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/contrib/seq2seq/python/ops/decoder.py", line 309, in dynamic_decode
swap_memory=swap_memory)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/ops/control_flow_ops.py", line 3202, in while_loop
result = loop_context.BuildLoop(cond, body, loop_vars, shape_invariants)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/ops/control_flow_ops.py", line 2940, in BuildLoop
pred, body, original_loop_vars, loop_vars, shape_invariants)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/ops/control_flow_ops.py", line 2877, in _BuildLoop
body_result = body(*packed_vars_for_body)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/contrib/seq2seq/python/ops/decoder.py", line 254, in body
decoder_finished) = decoder.step(time, inputs, state)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/contrib/seq2seq/python/ops/beam_search_decoder.py", line 490, in step
cell_outputs, next_cell_state = self._cell(inputs, cell_state)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/ops/rnn_cell_impl.py", line 191, in call
return super(RNNCell, self).call(inputs, state)
File "/home/abc/Envs/tf-py3/lib/python3.5/site-packages/tensorflow/python/layers/base.py", line 714, in call
outputs = self.call(inputs, *args, **kwargs)
File "/home/abc/Projects/aster/core/sync_attention_wrapper.py", line 54, in call
self._attention_layers[i] if self._attention_layers else None)
ValueError: too many values to unpack (expected 2)

[tp-nan]

same problem. @doudoubilly dou you have solved this problem?

[bgshih]

@doudoubilly which TF version are you using? I have reproduced this issue on the most recent TF version (r1.10) but fixing it does not seem trivial. Please try TF r1.4 first.

[billqxg]

@bgshih Thanks for applying.
I have tried tf1.7，1.8 and 1.9. Since I have no PC at hand, I may try a little later.

[billqxg]

@ShiyangZhang Not yet.
You can follow suggestion from others in this issue and have a try.

[zongking123]

dou you have solved this problem?

[ustczhouyu]

@bgshih 我用python3 train.py训练的时候，初始化了15行代码，到从我下载的预训练模型中恢复数据的那一步的时候就卡住了，ctrl+c也关不掉了。如下所示，
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:root:Number of classes is 94
INFO:root:UNK label is 2
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:root:Number of classes is 94
INFO:root:UNK label is 2
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Scale of 0 disables regularizer.
INFO:tensorflow:Create CheckpointSaverHook.
INFO:tensorflow:Restoring parameters from /aster/experiments/demo/log/model.ckpt
恳请作者以及同各位跑过的大佬指导一下，非常感谢

[ww451575464]

ValueError: too many values to unpack (expected 2)
这个问题，在core/sync_attention_wrapper.py里面，attention, alignments, attention_state = _compute_attention，这个返回了三个值，所以添加了这个attention_state，并且在下面next_state = seq2seq.AttentionWrapperState这个里面，缺了一项，缺了attention_state这个参数，我直接将上面返回的attention_state给了这个输入，现在demo可以跑了
@bgshih 不知道这样是不是正确的

[IAmUnbounded]

It works with tensorflow version 1.4.

[pageedward]

@sukhad-app when i run demo.py ,something wrong :
InvalidArgumentError (see above for traceback): Unsuccessful TensorSliceReader constructor: Failed to get matching files on aster/experiments/demo/log/model.ckpt: Not found: aster/experiments/demo/log; No such file or directory
,how do u fix that?

[IAmUnbounded]

I think there is some path issue due to which it is not able to find 'aster/experiments/demo/log'. You can try absolute paths or follow the installation instructions carefully to make it work. Make sure that you did not delete the given directory accidentally.