AnnotationException: [Semantical Error] The annotation "@fos\RestBundle\Controller\Annotations\View" in method MyProject\Bundle\ContentBundle\Controller\ContentController::indexAction() does not exist, or could not be auto-loaded.

ContentController.php

<?php
    ...
    use FOS\RestBundle\Controller\Annotations\View;
    ...
    /**
     * Returns all content
     *
     * [GET] /{_locale}/content
     * @View()
     *
     * @param Request $request
     *
     * @param \Symfony\Component\HttpFoundation\Request $request
     * @return View
     */
    public function indexAction(Request $request)
    {
        ....
    }