PackagesNotFoundError: The following packages are not available from current channels:

[anaalmeidasantos]

Everytime that I try to install a new program, using the environment option I got this error.

(base) anasantos@MacBook-Air-de-Ana-110 FASTA % conda create -n roary_env -c bioconda roary
Collecting package metadata (current_repodata.json): done
Solving environment: unsuccessful attempt using repodata from current_repodata.json, retrying with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed

PackagesNotFoundError: The following packages are not available from current channels:

  - roary

Current channels:

  - https://conda.anaconda.org/bioconda/osx-arm64
  - https://conda.anaconda.org/bioconda/noarch
  - https://conda.anaconda.org/conda-forge/osx-arm64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/osx-arm64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/free/osx-arm64
  - https://repo.anaconda.com/pkgs/free/noarch
  - https://repo.anaconda.com/pkgs/r/osx-arm64
  - https://repo.anaconda.com/pkgs/r/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

[milot-mirdita]

Bioconda doesn't support Apple Silicon (ARM64) yet.
I have suggesting support for this some time ago (bioconda/bioconda-utils#706).

You can still use bioconda through Rosetta though:

CONDA_SUBDIR=osx-64 conda create -n NEW_ENV -c conda-forge -c bioconda WHATEVER_PACKAGES_YOU_WANT
conda activate NEW_ENV
conda config --env --set subdir osx-64
use-whatever-you-installed

[bsierieb1]

The solution of @milot-mirdita works like a charm!