Why symfony can't find template it rendered in other function - symfony

Question

I have a function in my controller like this:
<?php
namespace GradeBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Session\Session;
use GradeBundle\Entity\User;
use GradeBundle\Entity\SchoolClass;
class MainController extends Controller
{
/**
* #Route("/", name="index_page")
*/
public function index()
{
return $this->render('GradeBundle:Default:index.html.twig');
}
It renders the twig template correctly. However when I use other function:
/**
* #Route("/adminNew", name="add_admin")
*/
public function addAdmin()
{
$session = new Session();
if($session->get('loggedIn') == null)
return $this->redirect($this->generateUrl('index_page'));
else
return $this->render('GradeBundle:Add:newAdmin.html.twig');
}
I have the following error:
Unable to find template "GradeBundle:Default:index.twig.html".
Does anybody have any idea what might be wrong?

Answer 1

It's a typo somewhere you call template:
GradeBundle:Default:index.twig.html
But you have only GradeBundle:Default:index.html.twig template.
Note the difference: html.twig twig.html
I suspect that you extend it in GradeBundle:Add:newAdmin.html.twig by:
{% extends 'GradeBundle:Default:index.twig.html' %}
but should be:
{% extends 'GradeBundle:Default:index.html.twig' %}

Answer 2

Have you made sure to use the correct namespace for the Controller you're using? And are you including the correct files? Also I'm not sure I understand the question correctly - are you saying if you add another function with a different twig file render, the first one no longer renders? Could I see your class names and the namespaces / use statements?
Usually in these instances, it's that the templates are in the wrong place or the correct file is not included in order to find it.
Michael