Are you seeing an error loading certain
rexml files?
LoadError: cannot load such file -- rexml/document
It may be that rexml no longer ships as part of the Ruby version you are
using. If you are working with Ruby 3.0.0 or later, the rexml gem needs to be
explicitly installed as it is now a bundled gem.
Either add it to your Gemfile:
gem 'rexml'
or install it manually with:
$ gem install rexml