Error states Unable to resolve dependency: user requested 'debase (>0)'

Problem began after performing gem housekeeping activities, removing outdated versions of gems. I have attempted gem installations with several different versions of debase and ruby-debug-ide, both stable and beta, I even updated RubyMine to 2019.2, always the same error.

Re-installation options for products like Ruby, RubyGems, Bundler, rspec, are limited due to mandatory system isolation constraints, so activities like that are not performed unless there is reason to suspect an issue with an individual product. Even the process of obtaining different gem versions and the RubyMine IDE update are laborious.

Debug functions up to this point have been reliable.