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Questions tagged [rubygems]

RubyGems is a package management tool for the Ruby programming language. It allows users to download and update Ruby libraries, and provides automatic dependency resolution.

RubyGems is a package manager for the programming language that provides a standard format for distributing Ruby programs and libraries (in a self-contained format called a ), a tool designed to easily manage the installation of gems, and a server for distributing them.

Documentation

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How to make --no-ri --no-rdoc the default for gem install?

I don't use the RI or RDoc output from the gems I install in my machine or in the servers I handle (I use other means of documentation). Every gem I install installs RI and RDoc documentation by default, because I forget to set --no-ri --no-rdoc. Is…
Ricardo Acras
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Ruby: 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?
mjs
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635
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How to remove RVM (Ruby Version Manager) from my system

How can I remove RVM (Ruby Version Manager) from my system?
lucianosousa
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How to install a gem or update RubyGems if it fails with a permissions error

I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system, and it fails with this error: ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the…
Gaurav
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527
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33 answers

Error installing mysql2: Failed to build gem native extension

I am having some problems when trying to install mysql2 gem for Rails. When I try to install it by running bundle install or gem install mysql2 it gives me the following error: Error installing mysql2: ERROR: Failed to build gem native…
spacemonkey
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Error while installing json gem 'mkmf.rb can't find header files for ruby'

For context, it on a remote server which has a firewall. I'm setting up my environment through a proxy. I have ruby 1.8.7. When I try to gem install.. sudo gem install --http-proxy : json I get the following error: Building…
Navneet
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How to install gem from GitHub source?

I would like to install gem from the latest GitHub source. How do I do this?
Vojto
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457
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8 answers

How to downgrade or install an older version of Cocoapods

How can I downgrade Cocoapods to an older version, or how can I install an older version of Cocoapods?
a fair player
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438
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6 answers

How can I specify a local gem in my Gemfile?

I'd like Bundler to load a local gem. Is there an option for that? Or do I have to move the gem folder into the .bundle directory?
picardo
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30 answers

How do I install CocoaPods?

I referred to many links and tried, but I had no success. I read CocoaPods documents and many times tried to install, but I always failed because of the starting steps. I found one error whereby I can't install gems first. What are the steps one by…
kagmanoj
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You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory. (mac user)

below is what I need to do. To run the specs, you'll need to install RSpec. First, run gem install bundler in the root directory of your project. Then, run bundle install. To run a single spec file, run a command like this: bundle exec rspec…
user9426236
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7 answers

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 most recent?
Philippe Blayo
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403
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12 answers

How to find where gem files are installed

I can finds gems that are installed using gem list, but it doesn't show me where the gems are installed. How can I find where the gems are, and how can I know before installing a gem where it will be installed?
ironsand
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18 answers

gem install: Failed to build gem native extension (can't find header files)

I am using Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running. Now I tried to do this as root user: gem install mysql But I get this error: Building native extensions. This could take a while... ERROR: Error installing…
Tim
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362
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9 answers

How can I install a local gem?

If I download a .gem file to a folder in my computer, can I install it later using gem install?
hectorsq
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