UnboundLocalError: local variable 'eval_features' referenced before assignment

[deepakbandela]

Following through the readme and ran the file
python run_ner.py --data_dir=data/ --bert_model=bert-base-cased --output_dir=out_base --max_seq_length=128 --do_train --num_train_epochs 3 --do_eval --eval_on dev

I get this error. This is blocking,

Traceback (most recent call last):
File "C:\work\code\ai\BERT-NER-TF\run_ner.py", line 512, in
main()
File "C:\work\code\ai\BERT-NER-TF\run_ner.py", line 380, in main
np.asarray([f.label_id for f in eval_features],dtype=np.int32))
UnboundLocalError: local variable 'eval_features' referenced before assignment

[MengAaron]

You can put the code of definition of eval_features above the line 380