title: RSpec LoadError
body: <p>I'm trying to practice writing tests for challenges on CodeEval. Each challenge I'm creating a folder, inside the project folder I create  'lib' &amp; 'spec' folder. From the command line I run:</p>
  
  <pre><code>rspec --init
  </code></pre>
  
  <p>it tells me that 'spec/spec_helper.rb' &amp; '.rspec' are created. I put the source file in the 'lib' folder &amp; the spec file in the 'spec/lib' folder &amp; name them accordingly. Here's an example of a spec:</p>
  
  <pre><code>require 'spec_helper'
  require 'file_name'
  
  describe '#swap_elements' do
    it 'should swap 1 pair of numbers' do
      swap_elements('1 2 3 4 5 6 7 8 9',0,8).should == '9 2 3 4 5 6 7 8 1'
    end
  end
  </code></pre>
  
  <p>from the project's root directory I run:</p>
  
  <pre><code>rspec /spec/lib/file_name_spec.rb
  </code></pre>
  
  <p>and the result is the following:</p>
  
  <pre><code>/Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load': cannot load such file -- /spec/lib/swap_elements_spec.rb (LoadError)
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `block in load_spec_files'
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `each'
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load_spec_files'
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:in `run'
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:80:in `run'
  from /Users/username/.rvm/gems/ruby-2.0.0-p195/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:in `block in autorun'
  </code></pre>
  
  <p>This is a recent problem &amp; I haven't installed any updated rspec gems. Any idea why this is happening?</p>