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Unsupported shape calculation for operator nonMaximumSuppression - CoreML to ONNX conversion

See original GitHub issue

 File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.7/site-packages/onnxmltools/convert/main.py", line 18, in convert_coreml
    custom_conversion_functions, custom_shape_calculators)
  File "/usr/local/lib/python3.7/site-packages/onnxmltools/convert/coreml/convert.py", line 60, in convert
    topology = parse_coreml(spec, initial_types, target_opset, custom_conversion_functions, custom_shape_calculators)
  File "/usr/local/lib/python3.7/site-packages/onnxmltools/convert/coreml/_parse.py", line 467, in parse_coreml
    topology.compile()
  File "/usr/local/lib/python3.7/site-packages/onnxconverter_common/topology.py", line 632, in compile
    self._infer_all_types()
  File "/usr/local/lib/python3.7/site-packages/onnxconverter_common/topology.py", line 508, in _infer_all_types
    operator.infer_types()
  File "/usr/local/lib/python3.7/site-packages/onnxconverter_common/topology.py", line 110, in infer_types
    registration.get_shape_calculator(self.type)(self)
  File "/usr/local/lib/python3.7/site-packages/onnxconverter_common/registration.py", line 68, in get_shape_calculator
    raise ValueError('Unsupported shape calculation for operator %s' % operator_name)
ValueError: Unsupported shape calculation for operator nonMaximumSuppression

I followed the steps to convert CoreML model to ONNX, this error arises on onnx_model = onnxmltools.convert_coreml(coreml_model, 'TinyYOLOv2')

The model was created using TuriCreate - Object Detection - Darknet

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:10

Top GitHub Comments

2reactions

cansikcommented, Apr 6, 2020

I just saw that there has been a PR for this. I will install the current master branch, merge the PR and check if it works.

Update: Nope, it is still not registered.

0reactions

simplepandacommented, Jan 29, 2022

Hello,

Any update for this issue? I have the same problem…

Unfortunately, it looks like support has basically been dropped for Core ML in this project. It’s going on 3 years where you can’t really use onnxmltools to convert CoreML.

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