Error setting up Anaconda env from yml

[yesols]

Hello,
I downloaded the yml file and tried to create an environment from it but I'm getting this error:

$ conda env create -f /Users/yesol/Downloads/enrich2_env.yml 
Collecting package metadata (repodata.json): done
Solving environment: failed

ResolvePackageNotFound: 
  - pandas=0.19

Would appreciate any help how to fix this. I'm running this on macOS Mojave if that's relevant. Thank you!

Yesol

[yesols]

After reading up on how to manage Anaconda environments some more, I think I found a workaround: I deleted the pandas line from yml file and created an environment from it successfully. And then installed specified pandas version manually from within the environment by running conda install --channel conda-forge pandas=0.19
So far it seems to run okay - I was able to do the example datasets.