Installer should check for non-conda-forge installed packages #1190
Description
Is your feature request related to a problem? Please describe.
A mix of conda-forge and non-conda-forge packages in the environment can cause weird and hard-to-debug errors, and it's easy to get into this state if you have miniconda or anaconda.
Describe the solution you'd like
It would be nice if the setup script checked for this if we're in a conda environment, and printed a warning, ideally with a command to reinstall the affected packages from conda-forge.
Describe alternatives you've considered
- Continue to work with individual users to fix their messed up Conda set-up
- Tell affected users to just buy a new computer
- Kindly ask Anaconda Inc. to discontinue their product and tell everyone to switch to miniforge
- Move to a deserted island somewhere in the South Pacific and start a coconut shell collection
Additional context
Possibly related: gfortran printing clang: error: no input files on macos (not making this up)