After installing supee 7405

Fatal error: Undefined class constant 'AREA ADMINHTML in app/code/core/Mage/Core/Model/Config.php

It is enterprise edition 1.14

  • Could you post the relevant code form app/code/core/Mage/Core/Model/Config.php that's using the AREAADMINHTML constant? Jan 23, 2016 at 18:44
  • Thanks for the response, upgrading PHP version to 5.5 sorted out the issue. :) Feb 2, 2016 at 6:09

3 Answers 3


Please ensure to clean all Caches and then (if you have APC or php >= 5.5) restart php service in order to clean opcode cache.

  • Done already but not helped :( Jan 22, 2016 at 11:01

Please reach out to Magento support - that way we will help in your case and be able to help others as well.


if i comment line 962 with the “$this->_makeEventsLowerCase(Mage_Core_Model_App_Area::AREA_ADMINHTML, $mergeModel);” it will turn to the install site http://******/index.php/install/ 。

  • i update the php version to PHP5.5 and install the patch again .And everything is ok...
    – 张施聪
    Feb 1, 2016 at 8:34

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