There is no extension able to load the configuration for “facebookbundle” symfony2

Question

I create my own FacebookBundle and

I got this error:

There is no extension able to load the configuration for \"facebookbundle\" (in /facebo

Answer 1

This error can also be caused by a missing or invalid services key at the root of your config. It should look something like this:

services:
    foo_bar.baz:
        class: Foo\BarBundle\Service\BazService