I've just downloaded Symfony and I'm having a issue during the checking before starting a project.
After activating a php accelerator and disabling some extensions in php.ini, the system is displaying this message: intl ICU version installed on your system is outdated (56.1) and does not match the ICU data bundled with Symfony (57.1)
I've been searching through the documentation and I was not able to find how to fix that issue. Do I miss anything during the installation? How I upgrade this icu system?
Information about system: OSX with MAMP Running php 7 Symfony 3.1.14.
Thanks!