# Convert\_graph\_to\_onnx doesn't meet UnicodeDecodeError

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**Category:** 🤗Transformers\
**Created:** [October 21, 2021, 6:59am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fconvert-graph-to-onnx-doesnt-meet-unicodedecodeerror%2F10959 "2021-10-21T06:59:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![qiu](https://avatars.discourse-cdn.com/v4/letter/q/ed8c4c/32.png) [@qiu](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Fu%2Fqiu)%5C
**Post date:** [October 21, 2021, 6:59am UTC](/static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fconvert-graph-to-onnx-doesnt-meet-unicodedecodeerror%2F10959%2F1 "2021-10-21T06:59:44Z")

</div>

i want to convert [dialogpt model](https://huggingface.co/microsoft/DialoGPT-medium/tree/main) to onnx model, this is my all code:

```auto
from transformers.convert_graph_to_onnx import convert
convert(framework="pt", model="DialoGPT-medium/pytorch_model.bin", output=Path("onnx/bert-base-chinese.onnx"), opset=7)

```

and i meet error:  
`UnicodeDecodeError: 'utf-8' codec can't decode byte 0x80 in position 64: invalid start byte`  
how can i fix this?