We are attempting to add some shared groovy libraries to use in our pipeline scripts. We are using Mercurial for source control. When I attempt to use a library, I get this error:

Started by user Adrian Chan
Running in Durability level: MAX_SURVIVABILITY
Loading library DevOps.BuildUtilities@default
ERROR: No configured Mercurial installation
ERROR: No version default found for library DevOps.BuildUtilities

I believe that the problem is that when I configure the pipeline shared library, there is no option to select a Mercurial Version like you have when you configure a pipeline project to pull the code from SCM.