title: Impossible to load fixtures in Symfony2 "Could not find any fixtures to load"
body: <p>I desperately try to load Doctrine fixtures into my DB.
  When I call the global cli load function, nothing looks bad at the beginning:</p>
  
  <pre><code>&gt; purging database
  &gt; loading [1] namespace_of_my_first_fixture_file
  &gt; loading [2] namespace_of_my_second_fixture_file
  ...
  </code></pre>
  
  <p>But it fails in the middle of the process when it tries to re-use an object from a previous loaded fixtures (wrong index):</p>
  
  <pre><code>[ErrorException]                                                                                                                                                          
  Notice: Undefined index: my_object_index in /Users/Swop/project/vendor/doctrine/data-fixtures/lib/Doctrine/Common/DataFixtures/ReferenceRepository.php line 145
  </code></pre>
  
  <p>I look at the DB and nothing is inserted, in any tables. If I try to load only the first fixture (which seems to be loaded according to the above paste), I've got an error:</p>
  
  <pre><code>[InvalidArgumentException]                                          
  Could not find any fixtures to load in:                             
  
  - src/MyOrg/MyBundleBundle/DataFixtures/ORM/MyFirstFixtureFileData.php
  </code></pre>
  
  <p>By the way, I just run that on my MacOS X (Mountain Lion) with a self-compiled PHP 5.4 instance.</p>
  
  <p>The fixtures data loading works well on my Linux box.</p>