when fine-turn on QuacQA dataset,I meet RuntimeError: index out of range: Tried to access index 1 out of table with 0 rows. at /pytorch/aten/src/TH/generic/THTensorEvenMoreMath.cpp:418

01/19/2021 10:26:56 - INFO - __main__ - device: cpu n_gpu: 0, distributed training: False, 16-bits training: False
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - Model name 'longformer_finetuned-squadv1' not found in model shortcut name list (allenai/longformer-base-4096, allenai/longformer-large-4096, allenai/longformer-large-4096-finetuned-triviaqa, allenai/longformer-base-4096-extra.pos.embd.only, allenai/longformer-large-4096-extra.pos.embd.only). Assuming 'longformer_finetuned-squadv1' is a path, a model identifier, or url to a directory containing tokenizer files.
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - Didn't find file longformer_finetuned-squadv1/added_tokens.json. We won't load it.
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - Didn't find file longformer_finetuned-squadv1/special_tokens_map.json. We won't load it.
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - loading file longformer_finetuned-squadv1/vocab.json
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - loading file longformer_finetuned-squadv1/merges.txt
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - loading file None
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - loading file None
01/19/2021 10:26:56 - INFO - transformers.tokenization_utils - loading file longformer_finetuned-squadv1/tokenizer_config.json
01/19/2021 10:28:13 - INFO - transformers.configuration_utils - loading configuration file longformer_finetuned-squadv1/config.json
01/19/2021 10:28:13 - INFO - transformers.configuration_utils - Model config LongformerConfig {
"attention_mode": "longformer",
"attention_probs_dropout_prob": 0.1,
"attention_window": [
512,
512,
512,
512,
512,
512,
512,
512,
512,
512,
512,
512
],
"bos_token_id": 0,
"cls_token_id": 0,
"eos_token_id": 2,
"gradient_checkpointing": false,
"hidden_act": "gelu",
"hidden_dropout_prob": 0.1,
"hidden_size": 768,
"ignore_attention_mask": false,
"initializer_range": 0.02,
"intermediate_size": 3072,
"layer_norm_eps": 1e-05,
"mask_token_id": 50264,
"max_position_embeddings": 4098,
"model_type": "longformer",
"num_attention_heads": 12,
"num_hidden_layers": 12,
"pad_token_id": 1,
"sep_token_id": 2,
"type_vocab_size": 1,
"unk_token_id": 3,
"vocab_size": 50265
}

01/19/2021 10:28:13 - INFO - transformers.modeling_utils - loading weights file longformer_finetuned-squadv1/pytorch_model.bin
01/19/2021 10:28:19 - INFO - __main__ - ***** Running training *****
01/19/2021 10:28:19 - INFO - __main__ - Batch size = 32
01/19/2021 10:28:19 - INFO - __main__ - Num steps = 18686
Iteration: 0%| | 0/14949 [00:00
main()
File "/home/suke/Store/nlp/LongFormer/run_quacqa.py", line 1281, in main
loss = model(input_ids,input_mask, None,segment_ids, None, None,start_positions, end_positions)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in __call__
result = self.forward(*input, **kwargs)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/transformers/modeling_longformer.py", line 983, in forward
inputs_embeds=inputs_embeds,
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in __call__
result = self.forward(*input, **kwargs)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/transformers/modeling_longformer.py", line 673, in forward
encoder_attention_mask=None,
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/transformers/modeling_bert.py", line 727, in forward
input_ids=input_ids, position_ids=position_ids, token_type_ids=token_type_ids, inputs_embeds=inputs_embeds
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in __call__
result = self.forward(*input, **kwargs)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/transformers/modeling_roberta.py", line 66, in forward
input_ids, token_type_ids=token_type_ids, position_ids=position_ids, inputs_embeds=inputs_embeds
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/transformers/modeling_bert.py", line 176, in forward
token_type_embeddings = self.token_type_embeddings(token_type_ids)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/modules/module.py", line 532, in __call__
result = self.forward(*input, **kwargs)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/modules/sparse.py", line 114, in forward
self.norm_type, self.scale_grad_by_freq, self.sparse)
File "/home/suke/Store/anaconda3/lib/python3.6/site-packages/torch/nn/functional.py", line 1484, in embedding
return torch.embedding(weight, input, padding_idx, scale_grad_by_freq, sparse)
RuntimeError: index out of range: Tried to access index 1 out of table with 0 rows. at /pytorch/aten/src/TH/generic/THTensorEvenMoreMath.cpp:418