ImportError

[PaulaTeeuwen]

I installed pytorch-fast-transformers==0.4.0 on a linux computer using pip install.

The error I observe is:
ImportError:
/home/pcpt3/.conda/envs/gt4sd/lib/python3.8/site-packages/fast_transformers/causal_product/causal_product_
cpu.cpython-38-x86_64-linux-gnu.so: undefined symbol: _ZTIN3c1021AutogradMetaInterfaceE

How do I solve this?
Thank you in advance

[DrBrule]

I was having the same issue.

Update : Installing from source seems to help:

#117