Hey, I used to get this very error when I used to build for arm64. Then when I built without QNN_PACK, and PYTORCH_QNN_PACK it worked. I also found that the tag v1.4.0 I was able to build with PYTORCH_QNN_PACK. So if you don’t need QNN_PACK (this is for low-precision fast inference on small devices, I believe), you can try that till it is fixed. I also have a repo, in which I have built some wheels if you need Pytorch ARM Builds 13.