bug with v2.0?

[mikemhenry]

This used to work in my CI, but with the 2.0 release it breaks now:

/home/runner/.local/bin/micromamba create -y -r /home/runner/micromamba -f environment.yml -n openfe_env python=3.10 pydantic=>1 --log-level warning --rc-file /home/runner/work/_temp/setup-micromamba/.condarc
  critical libmamba Error parsing version ">1". Version contains invalid characters in >1.

Not sure if this is a bug or if I was abusing micromamba syntax. When I pinned the version back to 1.5.6-0 it worked again.

Link to failed CI job: https://github.com/OpenFreeEnergy/openfe/actions/runs/11041820242/job/30672921965

[pavelzw]

You should probably open an issue in the main mamba repo instead

[jjerphan]

Thank you for opening this issue.

The problem you are observing has been fixed in a release candidate of 2.0.

I cannot reproduce the issue with micromamba 2.0 from conda-forge or from setup-micromamba.

The problem is likely due to an integration issue between setup-micromamba and micromamba-releases which picks a previous release candidate instead of 2.0.0.

We are inspecting this issue.

[jjerphan]

For now, explicitly setting the version of micromamba (fetched from micromamba-release) that setup-micromamba uses fixes the problem.

This can be done with:

      - name: Setup micromamba
        uses: mamba-org/[email protected]
        with:
          micromamba-version: '2.0.0-0'

[breakbotz]

I believe I'm running into the same (or similar) parsing issue when creating a micromamba environment via CLI (using latest version of micromamba):

micromamba env create --yes --file environment.yml results in:

    The following packages are incompatible
    ├─ aiohttp ~= does not exist (perhaps a typo or a missing channel);
    ├─ anthropic ~= does not exist (perhaps a typo or a missing channel);
    ├─ fluxus ~= does not exist (perhaps a typo or a missing channel);
    ├─ gamma-pytools ~= does not exist (perhaps a typo or a missing channel);
    ├─ google-generativeai ~= does not exist (perhaps a typo or a missing channel);
    ├─ graphviz ~= does not exist (perhaps a typo or a missing channel);
    ├─ groq ~= does not exist (perhaps a typo or a missing channel);
    ├─ ipywidgets ~= does not exist (perhaps a typo or a missing channel);
    ├─ jupyterlab ~= does not exist (perhaps a typo or a missing channel);
... list continues for basically every dependency listed in my environment.yaml which has not changed in months

[jjerphan]

Hi @breakbotz,

Can you open an issue on mamba-org/mamba so that we can reproduce and fix the error? Thank you.

[breakbotz]

Hi @breakbotz,

Can you open an issue on mamba-org/mamba so that we can reproduce and fix the error? Thank you.

Created mamba-org/mamba#3472

[SylvainCorlay]

Closing as it was not related to mamba but to GitHub action picking up a pre-release rather than 2.0.