title: Unable to generate a URL for the named route "regions.index" as such route does not exist
body: <p>I'm doing rest api with laravel 4 and I'm getting this error:</p>
  
  <pre><code>Unable to generate a URL for the named route "regions.index"
  as such route does not exist.
  </code></pre>
  
  <p>My router:</p>
  
  <pre><code>Route::group(array('prefix' =&gt; 'api/v1'), function(){
     Route::get('regions', 'RegionsController@index');
     Route::get('regions/{id}', 'RegionsController@getOne');
     Route::get('regions/{id}/cities', 'RegionsController@getCities');
  });
  </code></pre>
  
  <p>api/v1/regions and api/v1/regions/1/cities
  are working fine</p>
  
  <p>but api/v1/regions/1 is not working and thows exception, I really don't know why and can't find how to make it work.</p>