Question

In Symfony2, when accessing my application locally via app_dev.php, everything works fine. However, when I access app.php it 404s:

Oops! An Error Occurred

The server returned a “404 Not Found”.

Something is broken. Please e-mail us at [email] and let us know what
you were doing when this error occurred. We will fix it as soon as
possible. Sorry for

Answer 1

A fresh symfony 2 install does not contain any routing for the production environment.
If you take a look under app/config/routing_dev.yml, you will notice that all of the routes that you see in the demo application are defined only for development. If you wish to test the demo on app.php, you have to first copy the routing from routing_dev.yml to routing.yml, and also enable the AcmeDemoBundle under you AppKernel.php:

$bundles = array(
        new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
        new Symfony\Bundle\SecurityBundle\SecurityBundle(),
        new Symfony\Bundle\TwigBundle\TwigBundle(),
        new Symfony\Bundle\MonologBundle\MonologBundle(),
        new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
        new Symfony\Bundle\DoctrineBundle\DoctrineBundle(),
        new Symfony\Bundle\AsseticBundle\AsseticBundle(),
        new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
        new JMS\SecurityExtraBundle\JMSSecurityExtraBundle(),
+       new Acme\DemoBundle\AcmeDemoBundle()
    }

if (in_array($this->getEnvironment(), array('dev', 'test'))) {
-       $bundles[] = new Acme\DemoBundle\AcmeDemoBundle();
        $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
        $bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
        $bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
    } 

(+ is the line you should add, – is the line you should remove)