# Robertaforquestionanswering

**URL:** <https://discuss.huggingface.co/t/robertaforquestionanswering/544>\
**Category:** 🤗Transformers\
**Created:** [July 30, 2020, 11:19pm UTC](https://discuss.huggingface.co/t/robertaforquestionanswering/544 "2020-07-30T23:19:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![madabhuc](https://avatars.discourse-cdn.com/v4/letter/m/7c8e57/32.png) [@madabhuc](https://discuss.huggingface.co/u/madabhuc)\
**Post date:** [July 30, 2020, 11:19pm UTC](https://discuss.huggingface.co/t/robertaforquestionanswering/544/1 "2020-07-30T23:19:36Z")

</div>

I am a newbie to huggingface/transformers…

I tried to follow the instructions at [https://huggingface.co/transformers/model\_doc/roberta.html#robertaforquestionanswering](https://huggingface.co/transformers/model_doc/roberta.html#robertaforquestionanswering) to try out this model but I get errors.

```auto
from transformers import RobertaTokenizer, RobertaForQuestionAnswering
import torch

tokenizer = RobertaTokenizer.from_pretrained('roberta-base')
model = RobertaForQuestionAnswering.from_pretrained('roberta-base')

inputs = tokenizer("Hello, my dog is cute", return_tensors="pt")
start_positions = torch.tensor([1])
end_positions = torch.tensor([3])

outputs = model(**inputs, start_positions=start_positions, end_positions=end_positions)
loss, start_scores, end_scores = outputs[:3]

```

The tokenizer is loaded but the error is in trying to load the QA model.

Traceback (most recent call last):  
File “/gstore/home/madabhuc/.local/lib/python3.6/site-packages/transformers/modeling\_utils.py”, line 655, in from\_pretrained  
raise EnvironmentError  
OSError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):  
File “test.py”, line 7, in   
model = RobertaForQuestionAnswering.from\_pretrained(‘roberta-base’)  
File “/gstore/home/madabhuc/.local/lib/python3.6/site-packages/transformers/modeling\_utils.py”, line 662, in from\_pretrained  
raise EnvironmentError(msg)  
OSError: Can’t load weights for ‘roberta-base’. Make sure that:

- ‘roberta-base’ is a correct model identifier listed on ‘[https://huggingface.co/models](https://huggingface.co/models)’

- or ‘roberta-base’ is the correct path to a directory containing a file named one of pytorch\_model.bin, tf\_model.h5, model.ckpt.

---

<div class="post-metadata">

**Author:** ![madabhuc](https://avatars.discourse-cdn.com/v4/letter/m/7c8e57/32.png) [@madabhuc](https://discuss.huggingface.co/u/madabhuc)\
**Post date:** [August 3, 2020, 7:58pm UTC](https://discuss.huggingface.co/t/robertaforquestionanswering/544/2 "2020-08-03T19:58:35Z")

</div>

Looks like an environment issue. I was able to run the code on another machine.