Uninstall old versions of Ruby gems

Uninstall old versions of Ruby gems

ruby gem

ruby

How to upgrade rubygems

ruby gem

ruby

Unable to install gem - Failed to build gem native extension - cannot load such file -- mkmf (LoadError)

ruby-on-rails ruby ubuntu gem bcrypt

ruby

ERROR: Error installing capybara-webkit:

ruby-on-rails ruby gem capybara capybara-webkit

ruby

How do I list all versions of a gem available at a remote site?

ruby gem version

ruby

Could not locate Gemfile

ruby gem bundler

ruby

How to install therubyracer gem on 10.10 Yosemite?

ruby gem rubygems

ruby

gem install permission problem

ruby-on-rails ruby gem

ruby

Getting the warning "Insecure world writable dir /home/chance " in PATH, mode 040777 for rails and gem

ruby-on-rails ruby linux gem rvm

ruby

cannot load such file -- zlib even after using rvm pkg install zlib

ruby linux gem rvm

ruby

bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]

ruby rubygems gem rvm bundler

ruby

is not checked out... bundle install does NOT fix help!

ruby-on-rails ruby git gem

ruby

"Could not find a valid gem in any repository" (rubygame and others)

ruby gem rubygame

ruby

"rmagick" gem installation issue

ruby gem

ruby

Error installing gem capybara-webkit

ruby gem capybara

ruby