The process '/home/runner/miniconda3/condabin/mamba' failed with exit code 1

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, conda-incubator/setup-miniconda@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

critical libmamba Could not solve for environment specs

error libmamba Could not solve for environment specs The following packages are incompatible ├─ fermitools >=2.5.0 * is installable and it requires │ ├─ numpy <2.0.0 *, which can be installed; │ └─ python_abi =3.11 *_cp311, which can be installed; └─ numpy >=2.0 * is not installable because there are no viable options ├─ numpy [2.0.0|2.0.1|...|2.5.0] conflicts with any installable versions previously reported; ├─ numpy [2.3.2|2.3.3|...|2.5.0] would require │ └─ python_abi =3.14 *_cp314, which conflicts with any installable versions previously reported; └─ numpy 2.5.0rc1 would require └─ _numpy_rc =* *, which does not exist (perhaps a missing channel).

The 'defaults' channel might have been added implicitly. If this is intentional, add 'defaults' to the 'channels' list. Otherwise, consider setting 'conda-remove-defaults' to 'true'.