LibMambaUnsatisfiableError when installing environment (bokeh ↔ dask version conflict)

[feiji110]

Hi, I'm encountering a dependency resolution failure while creating a linux-64 environment using conda/mamba.

The solver reports an unsatisfiable dependency between dask 2021.9.1 and bokeh 3.0.3:

LibMambaUnsatisfiableError: Encountered problems while solving:
  - package dask-2021.9.1 requires bokeh >=1.0.0,!=2.0.0,<3.0.0a0
    but bokeh 3.0.3 is the only installable version

It also reports that openssl 3.0.7 conflicts with the versions required by the environment.

This makes the environment impossible to solve with the current package constraints.
Could you please check the compatibility metadata for dask=2021.9.1 and the available bokeh/openssl builds in the repository?

Thanks!

[ShKim77]

Hello,

Thank you for reaching out! I haven't encountered this issue before.

Could you try removing the version specifications for bokeh and openssl in environment.yml file when installing the environment, and let me know if that resolves the problem? I think the dask version should be 2021.9.1 to support distributed GPU training as implemented in the script.

Looking forward to your update!