Top "Gem" questions

RubyGems is a package management tool for the Ruby programming language.

How to install a specific version of a ruby gem?

Using the command-line gem tool, how can I install a specific version of a gem?

ruby gem
Could not locate Gemfile

I'm certainly no Ruby developer but I have an application on my server using Ruby, Gems, and Bundler. I am …

ruby gem bundler
Uninstall old versions of Ruby gems

I have several versions of a Ruby gem: $ gem list rjb (1.3.4, 1.3.3, 1.1.9) How can I remove old versions but keep the …

ruby gem
How to upgrade rubygems

I need to upgrade gems to 1.8 i tried installing the respective debian packages but it seems its not getting upgraded …

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

Ruby 1.9.3 The part of Gemfile #............... gem "pony" gem "bcrypt-ruby", :require => "bcrypt" gem "nokogiri" #.................. When I'm trying to install gems, …

ruby-on-rails ruby ubuntu gem bcrypt
Pull is not possible because you have unmerged files, git stash doesn't work. Don't want to commit

I just want to pull. I have changes to disregard, my Gemfile and Gemlock files and I'd be happy to …

ruby-on-rails git gem git-pull git-stash
Why won't bundler install JSON gem?

I get the following error when attempting to run cap production deploy. DEBUG [dc362284] Bundler::GemNotFound: Could not find json-1.8.1.…

ruby-on-rails gem capistrano bundler
Installing PG gem on OS X - failure to build native extension

It seems many others have had problems installing the pg gem. None of the solutions posed for others have worked …

ruby-on-rails macos postgresql gem
ERROR: While executing gem ... (Gem::FilePermissionError)

I have checked all the other similar answers and none was exactly like mine, neither did any of those solutions …

ruby macos gem osx-mountain-lion sudo
Installing libv8 gem on OS X 10.9+

I'm trying to install libv8 3.16.14.3 but getting an error on OSX Mavericks using latest stable rvm and ruby-1.9.3-p125. This …

gem rubygems osx-mavericks osx-yosemite libv8