On running the upgrade from 5.1.2 to 5.1.4 on my production website I hit a problem when installing the site files, it just sat there.

In my phperror log I found the following error:

[24-Apr-2017 11:54:21 CST6CDT] PHP Fatal error: require_once(): Failed opening required '/home/geoffre3/public_html/components/com_easyblog/router.php' (include_path='.:/usr/local/php70/pear') in /home/geoffre3/public_html/administrator/components/com_easyblog/includes/easyblog.php on line 19

I thought it might be a php version error! it turned out that the file components/com_easyblog/router.php was not there.

I copied a router.php from my test installation and all went well after a retry.

Just FYI

Geoffrey