title: rails 4 deployment - rake stderr: config.eager_load is set to nil .. incorrect error message
body: <p>during a project staging deployment w Capistrano, with a common db access error to be solved, I noticed  the rake stderr line :</p>
  
  <pre><code>  rake stderr: config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly..
  </code></pre>
  
  <p>however , my config/environments/*rb files are correctly set as required..
  why this message ? what did I missed ? </p>
  
  <p>my config/environments/development.rb </p>
  
  <pre><code> config.eager_load = false
  </code></pre>
  
  <p>my config/environments/production.rb</p>
  
  <pre><code> config.eager_load = true
  </code></pre>
  
  <p>my config/environments/test.rb</p>
  
  <pre><code>config.eager_load = false
  </code></pre>
  
  <p>here is the extract from the console log</p>
  
  <pre><code>    Tasks: TOP =&gt; db:migrate
      (See full trace by running task with --trace)
  
      SSHKit::Command::Failed: rake exit status: 1
      rake stdout: Nothing written
      rake stderr: config.eager_load is set to nil. Please update your config/environments/*.rb files accordingly:
  
        * development - set it to false
        * test - set it to false (unless you use a tool that preloads your test environment)
        * production - set it to true
  
      rake aborted!
      Mysql2::Error: Access denied for user 'root'@'localhost' (using password: NO)
  </code></pre>