This may be a confusing error at first but it’s quite self explanatory. You can’t have any HTML text in a Twig template that extends another, not even comments.
PHP-Twig
Symfony has an specific Field Type to create a Timezone select widget in forms called TimezoneType. Very handy because it’s a pretty usual need in web applications.
Lets suppose you have created a bundle that has some specific configuration in the config.yml file (this is done by exposing semantic configuration). For example the languages supported by the…
config.yml