symfony - Class Not Found Exception Error -

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i upgraded project's symfony framework 2.3 2.7

but ran error:

class not found exception in appdevdebugprojectcontainer.php line 4227:  attempted load class "twig_extensions_extension_text" global  namespace. did forget "use" statement?

i pretty new symfony , lot of stuff still quite overwhelming me. can please me out this?

thank you

this class doesn't come twig/twig package, twig/extensions package (docs).

make sure have package installed running composer show -i , searching (or using grep) in output package name.

if haven't, install package:

$ composer require twig/extensions

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