title: Symfony 2 InvalidArgumentException: The file app/config/config_prod.yml does not exist
body: <p>I'm trying to access a Symfony Installation on my VPS running CentOS.</p>
  
  <p>The files /app/config/config_dev.yml and /app/config/config_prod_yml exist on the server. I even chmodded them to 0777 for testing purposes but I still get the error that they don't exists.</p>
  
  <p>Full trace:</p>
  
  <pre><code>InvalidArgumentException: The file "/home/XXXXX/public_html/app/config/config_dev.yml" does not exist.
  
  in /home/XXXXX/public_html/app/cache/dev/classes.php line 3637
  at FileLocator-&gt;locate() in /home/XXXXX/public_html/app/cache/dev/classes.php line 4524
  at FileLocator-&gt;locate() in /home/XXXXX/public_html/vendor/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php line 40
  at YamlFileLoader-&gt;load() in /home/XXXXX/public_html/vendor/symfony/src/Symfony/Component/Config/Loader/DelegatingLoader.php line 52
  at DelegatingLoader-&gt;load() in /home/XXXXX/public_html/app/AppKernel.php line 39
  at AppKernel-&gt;registerContainerConfiguration() in /home/XXXXX/public_html/app/bootstrap.php.cache line 867
  at Kernel-&gt;buildContainer() in /home/XXXXX/public_html/app/bootstrap.php.cache line 783
  at Kernel-&gt;initializeContainer() in /home/XXXXX/public_html/app/bootstrap.php.cache line 517
  at Kernel-&gt;boot() in /home/XXXXX/public_html/app/bootstrap.php.cache line 548
  at Kernel-&gt;handle() in /home/XXXXX/public_html/web/app_dev.php line 28
  </code></pre>