I've never used Ruby before so this and the surrounding terminology is new to me; I'm only doing the install so I have a base to run a specific application.

I need Ruby 1.9.3, as I understand it I should be using RVM as it'll make things less complicated with version conflicts (I'm using Ubuntu 12.04 LTS and already seem to have 1.8 & 1.9.1).

Problem is that I'm still getting version conflicts, what am I doing wrong please?

Details follow:

On a vanilla ubuntu 12.04 LTS I install rvm & bundler

sudo apt-get install ruby-bundler ruby-rvm

I have a .rvmrc file in my project root containing:

rvm use 1.9.3-p484@project-root --create

I have executed sudo rvm reload

I then tell rvm to install a particular ruby

sudo rvm install ruby-1.9.3-p484

and it barfs

Installing rubygems for /usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/bin/ruby

ERROR: Error running 'GEM_PATH="/usr/share/ruby-rvm/gems/ruby-1.9.3-p484:/usr/share/ruby- rvm/gems/ruby-1.9.3-p484@global:/usr/share/ruby-rvm/gems/ruby-1.9.3-p484:/usr/share/ruby- rvm/gems/ruby-1.9.3-p484@global" GEM_HOME="/usr/share/ruby-rvm/gems/ruby-1.9.3-p484" "/usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/bin/ruby" "/usr/share/ruby-rvm/src/rubygems-1.6.2/setup.rb"', please read /usr/share/ruby-rvm/log/ruby-1.9.3-p484/rubygems.install.lo

The log contains this:

/usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/lib/ruby/1.9.1/rubygems.rb:483:in find_files': undefined methodmap' for Gem::Specification:Class (NoMethodError) from /usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/lib/ruby/1.9.1/rubygems.rb:1108:in load_plugins' from /var/cache/ruby-rvm/src/rubygems-1.6.2/lib/rubygems/gem_runner.rb:84:in ' from /usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /usr/share/ruby-rvm/rubies/ruby-1.9.3-p484/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /usr/share/ruby-rvm/src/rubygems-1.6.2/setup.rb:25:

Looks like some conflict with v1.9.1?

If I go ahead anyway and run sudo bundle install (I have a Gemfile with some entries) i get a different error implying that bundler is using ruby 1.8!

Installing nokogiri (1.6.1) /usr/lib/ruby/vendor_ruby/1.8/rubygems/installer.rb:388:in `ensure_required_ruby_version_met': nokogiri requires Ruby version >= 1.9.2. (Gem::InstallError)

What am I doing wrong please?

The only other salient info I can give is the output from rvm info as you can see I have paths empty and the 'binary' is incorrect.


system: uname: "Linux ubuntu 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 15:31:16 UTC 2013 i686 i686 i386 GNU/Linux" bash: "/bin/bash => GNU bash, version 4.2.25(1)-release (i686-pc-linux-gnu)" zsh: " => not installed"

rvm: version: "rvm 1.6.9 by Wayne E. Seguin (wayneeseguin@gmail.com) [https://rvm.beginrescueend.com/]"

homes: gem: "not set" ruby: "not set"

binaries: ruby: "/usr/bin/ruby" irb: "/usr/bin/irb" gem: "/usr/bin/gem" rake: ""

environment: PATH: "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/share/ruby-rvm/bin:/usr/share/ruby-rvm/bin" GEM_HOME: "" GEM_PATH: "" MY_RUBY_HOME: "" IRBRC: "" RUBYOPT: "" gemset: ""

/usr/bin/ruby -v returns 1.8.7

1 Answer 1


Apparently the version of RVM that comes with Ubuntu is broken. I deleted it and followed the instructions in this SO post.

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