The route does not exist + 500 routing?callback=fos.Router.setData

[Hellow]

Hi,

I have thi issue since yesterday and I tried to find a solution but nothing is working.

So I've done the installation as it has been said in the doc.

• Downloaded the bundle and declared it in AppKernel.php and routing.yml
• Registred my route on routing.yml with expose at True

showImage:
    path: /showImage/{varI}/{varS}
    defaults:
        _controller: MyBundle:Default:showImage
        varI: null
        varS: null
    options:
        expose: true

• Published the assets
• Added the two scripts on my html.twig page

<script src="{{ asset('bundles/fosjsrouting/js/router.js') }}"></script>
<script src="{{ path('fos_js_routing_js', { callback: 'fos.Router.setData' }) }}"></script>

Debug of the route on the terminal :

[...]\websitename>php app/console fos:js-routing:debug
[router] Current routes
 Name            Method Scheme Host Path
 showImage ANY    ANY    ANY  /showImage/{varI}/{varS}

But I keep having this error on my console when I use the code Routing.generate('showImage', { varI: idI, varS: 0}) in my js file (my idI has a value) :

Error: The route "showImage" does not exist.                           router.js:9:313
	i.i http://localhost/websitename/web/bundles/fosjsrouting/js/router.js:9:313
	i.m http://localhost/websitename/web/bundles/fosjsrouting/js/router.js:10:27

And I also get a 500 internal error
http://localhost/websitename/web/app_dev.php/js/routing?callback=fos.Router.setData
And on this page:
An exception has been thrown during the rendering of a template ("The token storage contains no authentication token. One possible reason may be that there is no firewall configured for this URL.").

I work with symfony 2.7
I've cleared the cache
I've tried with different stable releases of the FosJSBundle but I keep getting the same error

[Hellow]

I worked again today on the problem and solved it
I changed the routing.yml file, moved the fos_js_routing route at the beginning of the file, before any other paths (it was at the end) :

fos_js_routing:
    resource: "@FOSJsRoutingBundle/Resources/config/routing/routing.xml"