Why is my Symfony2 install 404ing when I access app.php?

Why is my Symfony2 install 404ing when I access app.php?

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symfony

Symfony2 disable cache?

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symfony

The difference between Symfony and Silex

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symfony

Access Symfony/web/config.php from other address than localhost?

php symfony frameworks

symfony

how do i fix the symfony cache generated files

php symfony frameworks

symfony

New Project: Ruby on Rails or Symfony2 ( or other framework)

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symfony

Php framework : symfony 1, symfony 2 or Yii

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symfony

Symfony 2 performance optimisations

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symfony

Newbie and PHP Frameworks

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symfony

Development Costs, Frameworks Vs Straight PHP

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symfony

Symfony 2.5 "You have requested a non-existent service "siteTest.b"

php symfony frameworks

symfony

Zend Framework or Symfony2 [closed]

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symfony

Can I disable error/exception handling in Silex?

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symfony

FOSUserBundle properties in registration form from another entity

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symfony

symfony2 and run service automatically

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symfony