Magento 2.0.18 is the final 2.0.x release. After March 2018, Magento 2.0.x will no longer receive security patches, quality fixes, or documentation updates.
To maintain your site's performance, security, and PCI compliance, upgrade to the latest version of Magento.

Known issues that affect installation

If you use the optional PHP extension xdebug, you can encounter exceptions:

  • During installation
  • Accessing either the Magento Admin or storefront after a successful installation

Sample exception:

Fatal error: Maximum function nesting level of '100' reached, aborting!

To resolve this issue, you can:

  • Disable the xdebug extension.
  • Set the value of xdebug.max_nesting_level to a value of 200 or more. For more information, see xdebug documentation.

After you change the configuration of or disable xdebug, restart Apache:

  • CentOS: sudo service httpd restart
  • Ubuntu: sudo service apache2 restart