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pythonpytorchonnxonnxruntime

Unsupported ONNX opset version: 11

I'm following this guide to convert darknet to onnx. However, I'm facing the following error:

"C:\Users\Scott\Anaconda3\envs\pytorch_yolov4\lib\site-packages\torch\onnx\symbolic_helper.py", line 253, in _set_opset_version raise ValueError("Unsupported ONNX opset version: " + str(opset_version)) ValueError: Unsupported ONNX opset version: 11

What does this error mean and how to deal with it?

Solution

  • It looks like you have an old PyTorch version, probably PyTorch 1.2.

    The docs here https://github.com/Tianxiaomo/pytorch-YOLOv4#4-pytorch2onnx recommend at least PyTorch 1.4.