PackagesNotFoundError on install

[danielhill676]

With correct channels, calling conda create -n dragons python=3.10 dragons ds9 returns:

Channels:

• http://astroconda.gemini.edu/public
• conda-forge
• http://ssb.stsci.edu/astroconda
• defaults
  Platform: osx-arm64
  Collecting package metadata (repodata.json): done
  Solving environment: failed

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

• ds9
• dragons

Current channels:

• http://astroconda.gemini.edu/public
• https://conda.anaconda.org/conda-forge
• http://ssb.stsci.edu/astroconda
• defaults

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

https://anaconda.org

Is this a common error?

[teald]

Hi @danielhill676, you need to use osx-64, not osx-arm64 (looking at the Platform: output above). Please see the Installation Guide, specifically the warning in "Download and Install Miniforge".

[KathleenLabrie]

Also, the ssb.stsci.edu/astroconda channel should be removed from your list of channels. STScI has stopped support. I'm actually surprised that that didn't issue an error or a warning, I thought it had been archived.

[aarranshaw]

@KathleenLabrie @teald Piggybacking on this issue instead of submitting a new one as I had the same problem with platforms. I already have osx-arm64 miniforge (mamba, to be specific) for all of my other python environments. Is there a safe way of installing a completely separate osx-64 miniforge that I would only activate for using DRAGONS? I would like to keep osx-arm64 for my other environments, but I also want to reduce and analyze my Gemini data!