Since Twig 1.26 getName() was marked as depracated in \Twig_ExtensionInterface. Alongside, getName() implementation was added to abstract class \Twig_Extension.
For Twig versions less than 1.26 this implementation is missing. Symfony ~2.6 still supports Twig >=1.12.3.
Since Twig 1.26 getName() was marked as depracated in \Twig_ExtensionInterface. Alongside, getName() implementation was added to abstract class \Twig_Extension.
For Twig versions less than 1.26 this implementation is missing. Symfony ~2.6 still supports Twig >=1.12.3.