You can't simply ng-include a twig file from angular. Angular expects to get an url and will not understand Symfony aliasing that you are using there. Furthermore, it can't process TWIG at all.
If you have to use twig (and can't get away with just basic html and Angular), you'll have to create a controller and a route which will serve HTMLs, simplified example:
# app/config/routing.yml
view_route:
path: /views/{viewName}
defaults: { _controller: MyBundle:ViewController:viewAction }
# src/MyBundle/Controller/ViewController.php
<?php
namespace MyBundle\Controller;
class ViewController
{
public function viewAction($viewName)
{
return $this->render('MyBundle:AngularViews:' . $viewName);
}
}
Then you can do views:
<div ng-repeat='item in newItems'
ng-include="'{{ path('view_route', { view: 'Content/event.html.twig' }) }}'"></div>