The file routing.yml not work anymore
<p>I wrote in my routing.yml file two patterns for two url, but my symfony 2.8.2 generated next error: "The file C:\xampp...routing.yml does not contain valid YAML ...". This code worked in symfony 2.0.0 but not work anymore in 2.8.2. Can anyone tell me way?</p>

<pre><code>demo_homepage:
    path:     /
    defaults: { _controller: DemoBundle:Default:index }

demo_hello:
    path:     /hello
    defaults: { _controller: DemoBundle:Default:hello }
</code></pre>