undefined symbol: _ZNK5torch8autograd4Node4name

[wenhuach21]

Describe the bug

After installing and uninstalling some libraries, issues like this frequently occur.

ImportError: /home/wenhuach/anaconda3/envs/newvllm/lib/python3.10/site-packages/intel_extension_for_pytorch/lib/libintel-ext-pt-cpu.so: undefined symbol: _ZNK5torch8autograd4Node4name

Versions

2.6.0

[jingxu10]

Please double check if pytorch is the expected one.

[wenhuach21]

Yes, I believe so. The workaround is to uninstall torch, torchvision, and torchaudio, then reinstall them. However, I can’t recall if ipex also needs to be reinstalled.
I’ve encountered this issue quite a few times.
It’s a bit surprising that this was marked as NotAnIssue, considering it significantly impacts the user experience and appears to be specific to IPEX.

[jingxu10]

Is it a large software stack involved in your environment? Most likely you have a separate package installed, which has a specific version of pytorch dependent. When this installation took place, pip found in the environment that an existing unexpected version of pytorch had been installed, so it replaced the one you installed before with the dependent version.
Could you share output of pip list?