I\'m getting this error on my test server with PHP 5.5 (Symfony 3.0.9):
Everything is all right on my local server created with XAMPP havin
Actually, those are 2 of the 3 unique solutions.
As the problem is only in your server (that happened to me too), you could go to your domain and add /dev/urandom
to your existing open_basedir configuration property in your server configuration.
Read this article which offers 3 solutions (and according to your need only the solution #3 would work).