[GitHub] hanzhaogang opened a new issue #13327: Cannot find custom operator proposal Error whiling trying to export a Deformable-ConvNets which is based onmxnet into onnx

[GitBox <gi...@apache.org>]

hanzhaogang opened a new issue #13327: Cannot find custom operator proposal Error whiling trying to export a Deformable-ConvNets which is based onmxnet into onnx
URL: https://github.com/apache/incubator-mxnet/issues/13327
 
 
   ## Description
   I trained a model under Deformable-ConvNets([https://github.com/msracver/Deformable-ConvNets](https://github.com/msracver/Deformable-ConvNets)) which is based on mxnet. While trying to export it into onnx format, I hit this error: ` Cannot find custom operator proposal`
    
   
    it seems that the mxnet cannot find teh `proposal` operator, is is possible that Deformable-ConvNets defined this operator? But proposal should be a common one used to suggest a proposed region which is used for further classification, I think mxnet should support this operator.
   
   ## Environment info (Required)
   
   Package used (Python/R/Scala/Julia):
   I'm using Python 3.6.6 & 3.7.1, both of them cannot avoid this issue.
   
   
   Compiler (gcc/clang/mingw/visual studio):
   visual studio 2017.
   
   MXNet commit hash:
   I copied the master branch.
   
   
   
   ## Error Message:
   D:\>python onnx_conv_test.py
    [14:15:48] C:\Jenkins\workspace\mxnet\mxnet\src\nnvm\legacy_json_util.cc:209: Lo
    ading symbol saved by previous version v1.2.1. Attempting to upgrade...
    Traceback (most recent call last):
      File "onnx_conv_test.py", line 25, in <module>
        converted_model_path = onnx_mxnet.export_model(sym, params, [input_shape], n
    p.float32, onnx_file)
      File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-p
    ackages\mxnet\contrib\onnx\mx2onnx\export_model.py", line 75, in export_model
        sym_obj, params_obj = load_module(sym, params)
      File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-p
    ackages\mxnet\contrib\onnx\mx2onnx\_export_helper.py", line 58, in load_module
        sym, arg_params, aux_params = mx.model.load_checkpoint(model_name, num_epoch
    s)
      File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-p
    ackages\mxnet\model.py", line 437, in load_checkpoint
        symbol = sym.load('%s-symbol.json' % prefix)
      File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-p
    ackages\mxnet\symbol\symbol.py", line 2620, in load
        check_call(_LIB.MXSymbolCreateFromFile(c_str(fname), ctypes.byref(handle)))
      File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-p
    ackages\mxnet\base.py", line 252, in check_call
        raise MXNetError(py_str(_LIB.MXGetLastError()))
    mxnet.base.MXNetError: [14:15:48] C:\Jenkins\workspace\mxnet\mxnet\src\operator\
    custom\custom.cc:104: Check failed: CustomOperator::Get()->Find(params.op_type)
    != nullptr Cannot find custom operator proposal
   
   ## Minimum reproducible example
   just run below python scripts suggested by the mxnet offical guide: [http://mxnet.incubator.apache.org/tutorials/onnx/export_mxnet_to_onnx.html](http://mxnet.incubator.apache.org/tutorials/onnx/export_mxnet_to_onnx.html)
   
   
   import mxnet as mx
   import numpy as np
   from mxnet.contrib import onnx as onnx_mxnet
   
   sym = 'rfcn_voc-symbol.json'
   params = 'rfcn_voc-0007.params'
   # Standard Imagenet input - 3 channels, 224*224
   input_shape = (1,3,224,224)
   # Path of the output file
   onnx_file = 'test.onnx'
   # Invoke export model API. It returns path of the converted onnx model
   converted_model_path = onnx_mxnet.export_model(sym, params, [input_shape], np.float32, onnx_file)
   
   
   
   
   
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services