"import sunode" error

I tried to uninstall and reinstall the pymc within the sunode-env environment using

conda install -c conda-forge "pymc>=5"

and got the following error:
Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source. Collecting package metadata (repodata.json): - Killed