Compile Error: Cannot use isset() on the result of an expression

Question

I\'m getting this error in a app I am migrating from SF2.0.x to SF2.7:

[1] Symfony\\Component\\Debug\\Exception\\FatalErrorException: Compile Error: Cannot u         


        

Answer 1

Why are you doing so much useless code?

Why don't just:

{% if form_action|empty == true %} {% set form_action = '' %} {% endif %}