DeBug：An error has been caught in function ‘＜module＞‘, process ‘MainProcess‘ (1824)..

问题：要将在YOLOX中生成的权重文件.pth转成.onnx格式时报错

解决：按最新的使用例子去改写

正确格式（21/10/30）：

python3 tools/export_onnx.py --output-name yolox_s.onnx -n yolox-s -c yolox_s.pth

请看参考：YOLOX/demo/onNXRuntime at main · Megvii-baseDetection/YOLOX · GitHubYOLOX is a high-performance anchor-free YOLO, exceeding yolov3~v5 with MegEngine, ONNX, TensorRT, ncnn, and OpenVINO supported. documentation: https://yolox.readthedocs.io/ - YOLOX/demo/onNXRuntime at main · Megvii-baseDetection/YOLOXhttps://github.com/Megvii-baseDetection/YOLOX/tree/main/demo/ONNXRuntime

所以错误代码：

python tools/export_onnx.py -n yolox-nano -c weights/yolox_nano.pth --output name weights/yolox_nano.onnx

应该改为

python tools/export_onnx.py --output-name weights/yolox_nano.onnx -n yolox-nano -c weights/yolox_nano.pth

具体细节：

将pth转onnx时：使用了错误代码：

python tools/export_onnx.py -n yolox-nano -c weights/yolox_nano.pth --output name weights/yolox_nano.onnx

给出了报错信息：

ERROR    | __main__::116 - An error has been caught in function '', process 'MainProcess' (1824), thread 'MainThread' (7948):

完整报错如下：

(mypytorch) P:PytorchProjectYOLOX>python tools/export_onnx.py -n yolox-nano -c weights/yolox_nano.pth --output name weights/yolox_nano.onnx
2021-10-30 15:38:26.938 | INFO     | __main__:main:59 - args value: Namespace(batch_size=1, ckpt='weights/yolox_nano.pth', dynamic=False, exp_file=None, experiment_name=None, input='images', name='yolox-nano', no_onnxsim=False, opset=11, opts=['weights/yolox_nano.onnx'], output='name', output_name='yolox.onnx')
2021-10-30 15:38:26.949 | ERROR    | __main__::116 - An error has been caught in function '', process 'MainProcess' (1824), thread 'MainThread' (7948):
Traceback (most recent call last):

> File "toolsexport_onnx.py", line 116, in 
    main()
    └ 

  File "toolsexport_onnx.py", line 61, in main
    exp.merge(args.opts)
    │   │     │    └ ['weights/yolox_nano.onnx']
    │   │     └ Namespace(batch_size=1, ckpt='weights/yolox_nano.pth', dynamic=False, exp_file=None, experiment_name=None, input='images', na...
    │   └ 
    └ ╒══════════════════╤════════════════════════════╕
      │ keys             │ values                     │
      ╞══════════════════╪═════...

  File "P:PytorchProjectYOLOXyoloxexpbase_exp.py", line 64, in merge
    assert len(cfg_list) % 2 == 0
               └ ['weights/yolox_nano.onnx']

AssertionError: assert len(cfg_list) % 2 == 0

附图：

没看懂，去找官方文档，按最新的使用例子去改写后，正常运行