_torchtext.so: undefined symbol: _ZTVN5torch3jit6MethodE

[Alexey322]

Сan't import nemo.collections.asr in google colab notebook https://colab.research.google.com/github/NVIDIA/NeMo/blob/stable/tutorials/asr/ASR_with_NeMo.ipynb.
This worked on 11/11/2021, starting today (12/11/2021), the error appears:
ImportError: /usr/local/lib/python3.7/dist-packages/torchtext/_torchtext.so: undefined symbol: _ZTVN5torch3jit6MethodE

[titu1994]

Could you check the torch version installed ? As well as versions of torchtext and torchaudio? If colab has updated to PT 1.10, you will need to use the r1.5.0 branch instead of main or stable

[Alexey322]

@titu1994 Thanks for your reply.

By default, Colab now uses torch==1.10.0 + cu111, torchtext==0.11.0.
Indeed, BRANCH = 'r1.5.0' works without problems.
Could you tell me why this error occurs with BRANCH = 'r1.4.0'?

[okuchaiev]

please use r1.5.0 branch with pytorch 1.10.0. Closing

[porrasbrand]

How do I use the branch -- can someone please share the whole installation prompt example on how to do this ? thanks

[grofattila]

How do I use the branch -- can someone please share the whole installation prompt example on how to do this ? thanks

BRANCH = 'r1.5.0'
pip install git+https://github.com/NVIDIA/NeMo.git@$BRANCH#egg=nemo_toolkit[nlp]

[osinkolu]

I guess this should be updated in the tutorials, save newbies a ton on google searching.

[titu1994]

This is present at the top of most Nemo notebooks already.

[osinkolu]

Great!

[sahoodib]

I am getting same issue even with BRANCH = 'r1.5.0'
error :- ImportError: /usr/local/lib/python3.7/dist-packages/torchtext/_torchtext.so: undefined symbol: _ZTVN5torch3jit6MethodE

[osinkolu]

@sahoodib are you running the notebook directly on colab or your local PC, there were no issues during my run on colab.

[sahoodib]

@osinkolu I am running in Colab

[osinkolu]

@sahoodib it works fine on colab, uncomment "exit" in the first cell of the code.

[sahoodib]

@osinkolu it worked fine when I connected with the GPU.

[osinkolu]

great!

[sahoodib]

Biomegatron is unsupported in Branch=1.5.0, if I degrade the branch I stick with the above error. Any ideas to resolve the issue.