missing intl PHP extension during the rendering of a template

[oussaka]

I have this error on symfony-demo application.

An exception has been thrown during the rendering of a template ("Cannot parse message translation: please install the "intl" PHP extension or the "symfony/polyfill-intl-messageformatter" package.").

[davidbermudez]

Hello [Windows10] It is solved installing the component that is indicated via composer:

composer require symfony/polyfill-intl-messageformatter