RuntimeError: unexpected EOF. Corrupted File? about prophetnet HOT 4 CLOSED

Traceback (most recent call last):
  File "/usr/local/bin/fairseq-interactive", line 11, in <module>
    load_entry_point('fairseq', 'console_scripts', 'fairseq-interactive')()
  File "/workspace/fairseq/fairseq_cli/interactive.py", line 213, in cli_main
    main(args)
  File "/workspace/fairseq/fairseq_cli/interactive.py", line 164, in main
    translations = task.inference_step(generator, models, sample)
  File "/workspace/fairseq/fairseq/tasks/fairseq_task.py", line 356, in inference_step
    return generator.generate(models, sample, prefix_tokens=prefix_tokens)
  File "/usr/local/lib/python3.6/dist-packages/torch/autograd/grad_mode.py", line 49, in decorate_no_grad
    return func(*args, **kwargs)
  File "/workspace/fairseq/fairseq/sequence_generator.py", line 161, in generate
    return self._generate(sample, **kwargs)
  File "/workspace/fairseq/fairseq/sequence_generator.py", line 261, in _generate
    tokens[:, : step + 1], encoder_outs, self.temperature
  File "/workspace/fairseq/fairseq/sequence_generator.py", line 726, in forward_decoder
    incremental_state=self.incremental_states[i],
  File "/workspace/ProphetNet/src/prophetnet/ngram_s2s_model.py", line 590, in forward
    x_list, extra = self.extract_features(prev_output_tokens, encoder_out, incremental_state, **unused)
  File "/workspace/ProphetNet/src/prophetnet/ngram_s2s_model.py", line 751, in extract_features
    real_positions=real_positions
  File "/usr/local/lib/python3.6/dist-packages/torch/nn/modules/module.py", line 532, in __call__
    result = self.forward(*input, **kwargs)
  File "/workspace/ProphetNet/src/prophetnet/ngram_s2s_model.py", line 365, in forward
    real_positions=real_positions
  File "/usr/local/lib/python3.6/dist-packages/torch/nn/modules/module.py", line 532, in __call__
    result = self.forward(*input, **kwargs)
  File "/workspace/ProphetNet/src/prophetnet/ngram_multihead_attention.py", line 244, in forward
    saved_state = self._get_input_buffer(incremental_state)
  File "/workspace/ProphetNet/src/prophetnet/ngram_multihead_attention.py", line 418, in _get_input_buffer
    'attn_state',
  File "/workspace/fairseq/fairseq/utils.py", line 91, in get_incremental_state
    return module.get_incremental_state(incremental_state, key)
  File "/usr/local/lib/python3.6/dist-packages/torch/nn/modules/module.py", line 576, in __getattr__
    type(self).__name__, name))
AttributeError: 'NgramMultiheadAttention' object has no attribute 'get_incremental_state'