\Twig_Extension_InitRuntimeInterface not recognized?

[althaus]

Hey,

first: thanks for your nifty tool. It really eases upgrading. :)

I've got a custom TwigExtension which uses the @\Twig_Environment@ in a lot of places. Instead of refactoring all filters/functions I've implemented the @\Twig_Extension_InitRuntimeInterface@ as statet in the upgrade docs. Afterwards The deprecation detector still claims a deprecation.:

Overriding deprecated method Acme\HelloBundle\Twig\Extension\AcmeExtension->initRuntime()
since 1.23 (to be removed in 2.0), implement Twig_Extension_InitRuntimeInterface instead

Cheers
Matthias