Problem locating OpenMC via mamba

User Support
1

Hi, I am following the installation instructions for Linux/Mac with mamba and Conda-forge, and am running into an odd problem – I cannot locate a match for openmc. Here’s my output:

mamba search openmc
Loading channels: done
No match found for: openmc. Search: openmc

Name Version Build Channel

openmc-plotter 0.2.0 pyhd8ed1ab_0 conda-forge
openmc-plotter 0.3.1 pyhd8ed1ab_0 conda-forge

I thought maybe it had something to do with having an M1 Mac, so have tried to create an environment for osx-x86-64, and also tried running these from a terminal I’ve set up for rosetta … Didn’t make a difference. Any ideas what might be going wrong here?

Thanks!

2

Hi! Welcome to the forum! I have seen this issue recently, I am also Mac M1 (but I think it is has been seen on other platforms too). You might review this post to get a solution. I was able to resolve this issue in the past by completely reinstalling anaconda from scratch, making sure to delete every related file on my system. I had to also specifically install Anaconda for x86_64 rather than their arm64 version. Let us know if that works for you.

3

Your suggestion worked! Thank you so much!

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