[itsuka]

I followed the conda instruction which uses Python 3.9 and ran into the same issue. The workaround is to import TypeAlias from typing_extensions:

stable-diffusion/src/k-diffusion/k_diffusion/sampling.py

(before)

  from typing import Optional, Callable, TypeAlias

(after)

  from typing import Optional, Callable
  from typing_extensions import TypeAlias

This issue is tracked in https://github.com/lstein/stable-diffusion/issues/302

[wincy]

you can also just change the python version in the yml file to 3.10.4 and it'll work