Trying to install CohortMethod in RStudio on under Mohave, but running up against the error:
Error: (converted from warning) unable to access index for repository https://OHDSI.github.io/drat/bin/macosx/el-capitan/contrib/3.5:
cannot open URL ‘https://OHDSI.github.io/drat/bin/macosx/el-capitan/contrib/3.5/PACKAGES’
Must be missing something in my configuration, but not sure what, and not seeing anyone reporting a similar issue.
Any suggestions from those with more experience with this package and OHDSI packages generally?