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ONNX export yields Error !

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hamed bastami
hamed bastami on 2 Dec 2019
Dear MathWorks Deep Learning Toolbox Team:
Hi, I tried to use exportONNXNetwork, I ran this part of code, but i saw this error, could you help me pls?!
Usage example:
%% Export to ONNX model format
net = squeezenet;
filename = 'squeezenet.onnx';
exportONNXNetwork(net,filename);
-------------------------------------
this error appear:
Error using nnet.internal.cnn.onnx.onnxmex
Invalid MEX-file
'C:\ProgramData\MATLAB\SupportPackages\R2019b\toolbox\nnet\supportpackages\onnx\+nnet\+internal\+cnn\+onnx\onnxmex.mexw64':
A dynamic link library (DLL) initialization routine failed.
Error in nnet.internal.cnn.onnx.ModelProto/writeToFile (line 50)
ModelPtr = onnxmex(int32(FuncName.EnewModelProto));
Error in nnet.internal.cnn.onnx.exportONNXNetwork (line 37)
writeToFile(modelProto, Filename);
Error in exportONNXNetwork (line 40)
nnet.internal.cnn.onnx.exportONNXNetwork(Network, filename, varargin{:});
Error in Untitled (line 5)
exportONNXNetwork(net,filename)
  3 Comments
Adrià López Escoriza
Adrià López Escoriza on 30 Apr 2021
Same, the bug report does not seem solve the issue in MacOS

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Answers (2)

Jon Cherrie
Jon Cherrie on 4 Apr 2021
It looks like you are hitting this bug:
There is a workaround listed in that bug report.

Neelanjana Pal
Neelanjana Pal on 12 Feb 2020
I also got the same issue but restarting the system solved my problem
  4 Comments
cui
cui on 16 Mar 2021
@Ting SuAfter copying onnxpb.dll, it can work now, thank you very much!

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