title: ZF2: Module could not be initialized
body: <p>I'm trying to get started with ZF2 and I have a problem when I writting code from tutorial (on ZF website). My code:    </p>
  
  <pre><code>Module.php:
  &lt;?php
  namespace About;
  
  class About
  {
      public function getAutoloaderConfig()
      {
          return array(
              'Zend\Loader\ClassMapAutoloader' =&gt; array(
                  __DIR__ . '/autoload_classmap.php',
              ),
              'Zend\Loader\StandardAutoloader' =&gt; array(
                  'namespaces' =&gt; array(
                      __NAMESPACE__ =&gt; __DIR__ . '/src/' . __NAMESPACE__,
                  ),
              ),
          );
      }
  
      public function getConfig() 
      {
          return include __DIR__ . '/config/module.config.php';
      }
  }
  ?&gt;
  
  config/module.config.php:
  
  &lt;?php
  return array(
      'controllers' =&gt; array(
          'invokables' =&gt; array(
              'About\Controller\About' =&gt; 'About\Controller\AboutController',
          ),
      ),
  
      'router' =&gt; array(
          'routes' =&gt; array(
              'album' =&gt; array(
                  'type'      =&gt;  'segment',
                  'options'   =&gt; array(
                      'route'     =&gt; '/about[/:action][/:id]',
                      'constraints' =&gt; array(
                          'action'    =&gt;  '[a-zA-Z][a-zA-Z0-9_-]*',
                          'id'        =&gt;  '[0-9]+',
                      ),
                      'defaults'  =&gt; array(
                          'controller'    =&gt; 'About\Controller\About',
                          'action'        =&gt;  'index',
                      ),
                  ),
              ),
          ),
      ),
  
      'view_manager' =&gt; array(
          'template_path_stack' =&gt; array(
              'about' =&gt; __DIR__ . '/../view',
          )
      ),
  );
  </code></pre>
  
  <p>Problem is:</p>
  
  <pre><code>Fatal error: Uncaught exception 'Zend\ModuleManager\Exception\RuntimeException' with message 'Module (About) could not be initialized.' in /var/www/zend2/vendor/zendframework/zendframework/library/Zend/ModuleManager/ModuleManager.php on line 175
  </code></pre>
  
  <p>Why it's shown on start? (in my project: /var/www/zend2/). If I remove module declaration from <code>application.config.php</code> it works okay. What is my problem? :/</p>