title: Vagrant can t require log4r
body: <p>I m trying to follow <a href="https://learnchef.opscode.com/quickstart/converge/" rel="nofollow">chef quickstart tutorial</a>, I m doing it on a Ubuntu 12.04 VM.</p>
  
  <p>I ve created the git, cookbook... And I m at the point I m supposed to start vagrant for attaching the node. But even while freshly installed vagrant, I get this error:</p>
  
  <pre><code>~/chef-repo$ vagrant up --no-color
  /opt/chef/embedded/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in 'require': cannot load such file -- log4r (LoadError)
      from /opt/chef/embedded/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in 'require'
      from /usr/bin/vagrant:2:in '&lt;main&gt;'
  </code></pre>
  
  <p>I tried to apt-get remove vagrant, it show that a package log4r will become useless.</p>
  
  <p>Even after reinstallation it give me the error.</p>
  
  <p>I don t know what I made wrong, and have no idea on how to solve this.</p>
  
  <p>EDIT: If I try with advanced setup, I get stuck at chef installation via gem:</p>
  
  <pre><code>~$ gem install chef
  ERROR: Loading command: install (LoadError)
      cannot load such file -- zlib
  ERROR: While executing gem ... (NameError)
      uninitialized constant Gem::Command::InstallCommand
  </code></pre>