[Flow] How tto retrieve custom configuration?

[Tomas M]

Hello flow users!

Actually I try to "read" my custom configuration from yaml.
This yaml is located at /MY/project/Configuration/foo.yaml

If I do a 
/flow configuration:show
at commandline I get:

Available configuration types:
  Caches
  Objects
  Routes
  Policy
  Settings
  Views
  MY.project.foo

If I do a
/flow configuration:show --type MY.project.foo

I get the content from yaml.

but, if I try to access these "settings" within the framework i.e. from a CommandController
I always getting NULL.

I followed all examples in documentation:
http://flowframework.readthedocs.org/en/stable/TheDefinitiveGuide/PartIII/Configuration.html

I.e.:
	/**
	 * @Flow\InjectConfiguration(package="MY.project.foo")
	 * @var array
	 */
	protected $someOtherPackageSettings = array();	


than:

$this->someOtherPackageSettings is equal NULL

I've try several other methods to access the settings, but it results every time in NULL...

Does some have an idea was going wronge here?