我的Symfony2项目上的路由问题

Question

I'm facing the following error:

An exception has been thrown during the rendering of a template ("Unable to generate a URL for the named route "casanet_addpaperpage" as such route does not exist.") in "CasanetBundle:Admin:deliverables.html.twig" at line 38.

Here is my Controller:

<?php

namespace ProjectB\CasanetBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;

use ProjectB\CasanetBundle\Entity\Paper;
use ProjectB\CasanetBundle\Entity\Event;
use ProjectB\CasanetBundle\Entity\Conference;
use ProjectB\CasanetBundle\Entity\Project;
use ProjectB\CasanetBundle\Form\PaperType;

class AdminController extends Controller {

public function deliverablesAction() {
    $em = $this->getDoctrine()->getManager();

    $papers = $em->getRepository("CasanetBundle:Paper")->findAll();
    $events = $em->getRepository("CasanetBundle:Event")->findAll();
    $conferences = $em->getRepository("CasanetBundle:Conference")->findAll();
    $projects = $em->getRepository("CasanetBundle:Project")->findAll();

    return $this->render('CasanetBundle:Admin:deliverables.html.twig', array(
        "papers" => $papers,
        "events" => $events,
        "conferences" => $conferences,
        "projects" => $projects,
    ));
} 

public function addpaperAction(Request $request){
    $paper = new Paper();

    $formPaper = $this->createForm(new PaperType(), $paper);

    if($request->isMethod("POST")){
        $formPaper->handleRequest($request);
        if($formPaper->isValid()){
            $em = $this->getDoctrine()->getManager();
            $paper = $formPaper->getData();
            $em->persist($paper);
            $em->flush();
        }
        return $this->redirectToRoute("casanet_deliverablespage");
    }

    return $this->render('CasanetBundle:Admin:addpaper.html.twig', array(
        "formPaper" => $formPaper->createView(), 
    ));

}
}       

Here is the concerned route in my routing.yml file:

casanet_addpaperpage:
    path:     /admin/addpaper
    defaults: { _controller: CasanetBundle:Admin:addpaper }

I've tried clearing the cache, running composer updates,renaming the route, routing through other paths, and so far no results.

Can anyone hint me towards the right way?

EDIT: Here's the concerned segment of my view:

<a href="{{path("casanet_addpaperpage") }}" class="btn btn-primary">Add a paper</a>

Answer 1

Think it's because your shortname for your bundle isn't right, should be

casanet_addpaperpage:
    path:     /admin/addpaper
    defaults: { _controller: ProjectBCasanetBundle:Admin:addpaper }

Answer 2

Since your route is present in router:debug --env=dev then you probably just need to clear the cache.

 php app/console cache:clear --env=dev

or prod if you use prod.

Answer 3

I found out what was wrong.

I ran a composer no-dev update and interrupted it 1 day ago, and it corrupted. Today I updated to Symfony 2.6.5 and it solved the issue I suppose. Thanks everyone!