Conda installation cannot find cudatoolkit=12.2

[jonathanking]

Hi there,

I ran into an issue trying to install OpenMM via conda on colab with the command conda install -c conda-forge openmm.

It seems that OpenMM is trying to install cudatoolkit=12.2, but this doesn't exist in the conda-forge channel. Is this expected? Is the installation command correct?

It seems possible to get around this by specifying the latest version of cudatoolkit available in conda-forge (11.8).

Please let me know your thoughts.

All the best,
Jonathan

[peastman]

Try installing with mamba instead. It gives much better error messages, especially in identifying why something couldn't be installed. The messages you get from conda are often misleading.

[sef43]

If this is on Colab then the issue is this: conda-incubator/condacolab#60

Currently all the cookbook colab examples fail with the same error

[jonathanking]

Thank you for pointing that out. I'll follow that issue instead! Feel free to close this.