ValueError: not enough values to unpack (expected 2, got 0)

[longpt214]

Hello,

I have the following issue. I have looked through all existing issues and it seems that it is a new issue. It happens when I try to train a model. The errors happen for both dummy data (I got on your README, and the delimiter is one space character, https://www.dropbox.com/s/e7lflyuuahox2ym/dummy_training.txt?dl=0) and my data. Could you give me insights into where the problem is?

deep-crf train dummy_training.txt --delimiter=' ' --dev_file input_file_dev.txt --save_dir . --save_name bilstm-cnn-crf_adam --optimizer adam

[2017-12-31 08:05:23,945] [INFO] start training... (run@main.py:417)
[2017-12-31 08:05:23,945] [INFO] epoch:0 (run@main.py:424)
[2017-12-31 08:05:23,945] [INFO]  [train] (run@main.py:425)
[2017-12-31 08:05:24,165] [INFO]   loss     :8.92536354065 (run@main.py:462)
[2017-12-31 08:05:24,165] [INFO]   accuracy :23.076923076923077 (run@main.py:463)
Traceback (most recent call last):
  File "/Users/longpham/anaconda/bin/deep-crf", line 11, in <module>
    load_entry_point('DeepCRF==1.0', 'console_scripts', 'deep-crf')()
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/DeepCRF-1.0-py3.6.egg/deepcrf/__init__.py", line 66, in train
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/DeepCRF-1.0-py3.6.egg/deepcrf/main.py", line 467, in run
  File "/Users/longpham/anaconda/lib/python3.6/site-packages/DeepCRF-1.0-py3.6.egg/deepcrf/main.py", line 369, in eval_loop
ValueError: not enough values to unpack (expected 2, got 0)

[longpt214]

Never mind! The problem is because I used the wrong format for dev_file. The format should be similar to training file.