🐛 AttributeError: 'DataParallel' object has no attribute 'resize_token_embeddings'

I'm facing AttributeError: 'DataParallel' object has no attribute 'resize_token_embeddings' while performing fine-tuning by using run_lm_finetuning.py.

Following are the arguments:

python run_lm_finetuning.py --train_data_file=sample_text.txt --model_type=gpt2 --model_name_or_path=gpt2 --output_dir=op --mlm --do_train --overwrite_output_dir --do_lower_case --save_steps=50

I tried to change the model but faced same error :

Detailed error message

Traceback (most recent call last):
File "run_lm_finetuning.py", line 556, in
main()
File "run_lm_finetuning.py", line 508, in main
global_step, tr_loss = train(args, train_dataset, model, tokenizer)
File "run_lm_finetuning.py", line 218, in train
model.resize_token_embeddings(len(tokenizer))
File "/nipa/anaconda3/envs/nlp/lib/python3.7/site-packages/torch/nn/modules/module.py", line 585, in getattr
type(self).name, name))
AttributeError: 'DataParallel' object has no attribute 'resize_token_embeddings'