RuntimeError: generator raised StopIteration

[xiaopanchen]

ile "H:\NLP\pointer_summarizer-master\data_util\batcher.py", line 215, in fill_example_queue
(article, abstract) = next(input_gen) # read the next example from file. article and abstract are both strings.
RuntimeError: generator raised StopIteration
WARNING:root:Bucket input queue is empty when calling next_batch. Bucket queue size: 0, Input queue size: 0