title: cannot load such file -- bundler (LoadError) in linode
body: <p>I want to deploy rails app to linode cloud server. I installed ubuntu 14.04 LTS and installed ruby 2.3.0 by rvm and also installed passenger with apache2. Then I cloned my app from bitbucket and try to bundle on it but i can't. It says like this....</p>
  
  <pre><code>/usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- bundler (LoadError)
  from /usr/local/rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
  from /usr/bin/bundle:7:in `&lt;main&gt;'
  </code></pre>