Symfony 3 Twig\Extension\AbstractExtension not found error in production mode

Question

I have an app that runs fine in dev mode, but when I run it in production this pops up:

Fatal error: Class \'Twig\\Extension\\AbstractExtension\' not found in C:         


        

Answer 1

Symfony\Bridge\Twig\Extension\LogoutUrlExtension extends Twig\Extension\AbstractExtension\AbstractExtension (which seemed to be missing for you).

That file is part of the twig/extensions package, so composer require twig/extensions should to the trick.

Why twig/extensions isn't required by the Symfony Twig Bridge I don't know. (The requires section on packagist.org only mentions twig/twig)