[GitHub] chowkamlee81 commented on issue #9392: Official version of MobileNet pretrained model and .json file

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chowkamlee81 commented on issue #9392: Official version of MobileNet pretrained model and .json file
URL: https://github.com/apache/incubator-mxnet/issues/9392#issuecomment-357158672
 
 
   Hi szha, model has been downloaded . But while exporting to .json and .param files throws an error ""Please first call block.hybridize() and then run forward with "
                   "this block at least once before calling export."
   
   Kindly help to resolve the issue as it thrown an exception in mxnet/gluon/block.py below code
   
       def export(self, path, epoch=0):
           """Export HybridBlock to json format that can be loaded by `mxnet.mod.Module`
           or the C++ interface.
   
           .. note:: When there are only one input, it will have name `data`. When there
                     Are more than one inputs, they will be named as `data0`, `data1`, etc.
   
           Parameters
           ----------
           path : str
               Path to save model. Two files `path-symbol.json` and `path-xxxx.params`
               will be created, where xxxx is the 4 digits epoch number.
           epoch : int
               Epoch number of saved model.
           """
           if not self._cached_graph:
               raise RuntimeError(
                   "Please first call block.hybridize() and then run forward with "
                   "this block at least once before calling export.")

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