Upgrade from 2.5 to 3.6.0 fails

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Errors reported[edit]

If you want to upgrade from 2.5.28 to 3.6.0 you get errors like:

Notice: Undefined property: LoginController::$input in ...administrator\components\com_login\controller.php on line 36

Fatal error: Call to a member function set() on null in ...administrator\components\com_login\controller.php on line 36

Versions affected[edit]

General Information

This pertains only to Joomla! version(s): 3.6.0

What is the cause[edit]

If you upgrade from 2.5 to 3.6.0 we did not remove some old files that get now loaded before the new ones. This will be fixed with 3.6.1.

How to fix[edit]

Wait for 3.6.1 (released soon) or see: https://github.com/joomla/joomla-cms/pull/11282