# Gemfile
gem "rdoc"
# setup.rb
#!/usr/bin/env ruby
require "bundler/setup"
system("gem install bundler --conservative")
system("bundler version")
$ gem -v
2.6.11
$ ./setup.rb
Bundler version 1.14.6
$ gem update --system 2.6.12
$ gem -v
2.6.12
$ ./setup.rb
ERROR: While executing gem ... (Gem::UnsatisfiableDependencyError)
Unable to resolve dependency: user requested 'did_you_mean (= 1.1.0)'
Bundler version 1.14.6