I'm trying to install CiviCRM 4.7.10 on Ubuntu 16.04/WordPress 4.6.1/PHP 5.6.
After completing the installation, when I try to open the CiviCRM node in the WordPress admin menu, I get an error 500 Internal Server error.
The error log in /var/log/apache tells me there is a problem: "Call to undefined function simplexml_load_file".
I fixed this by starting from scratch, this time making sure that I install the php5.6-simplexml package.
Could I have know about this in advance? Should the CiviCRM Installer page (in the WordPress admin) have checked and warn me about this problem?