NotImplementedError: The following operators are not implemented: ['aten::im2col']

[popojames]

Hello @pzq

As I discussed in previous post, I was able to convert PyTorch model into relay model. I was able to convert squeezeBERT.

Issue: Converting model from pytorch to relay model

Update: According to: PyTorch convert function for op ‘dictconstruct’ not implemented · Issue #1157 · apple/coremltools (github.com) After changing my code from model = transformers.SqueezeBertForSequenceClassification(config) into model=transformers.SqueezeBertForSequenceClassification.from_pretrained(‘squeezebert/squeezebert-uncased’, return_dict=False) I was able to convert it successfully!

However, when I tried to convert convBERT pre-trained model from huggingface,

  model = transformers.ConvBertForSequenceClassification.from_pretrained('YituTech/conv-bert-base', return_dict=False)

It shows the following errors:

NotImplementedError: The following operators are not implemented: [‘aten::im2col’, ‘aten::multiply’]

Thanks for your reply