Fatal error: Uncaught Error: Call to undefined method Mage_Core_Model_Resource_Setup::addAttribute() in /var/www/maxigel/app/code/local/Maxigel/CategorySettingsByAlex/sql/categorysettingsbyalex_setup/install-1.0.0.php:5 Stack trace: #0 /var/www/maxigel/app/code/core/Mage/Core/Model/Resource/Setup.php(624): include() #1 /var/www/maxigel/app/code/core/Mage/Core/Model/Resource/Setup.php(421): Mage_Core_Model_Resource_Setup->_modifyResourceDb() #2 /var/www/maxigel/app/code/core/Mage/Core/Model/Resource/Setup.php(327): Mage_Core_Model_Resource_Setup->_installResourceDb() #3 /var/www/maxigel/app/code/core/Mage/Core/Model/Resource/Setup.php(235): Mage_Core_Model_Resource_Setup->applyUpdates() #4 /var/www/maxigel/app/code/core/Mage/Core/Model/App.php(428): Mage_Core_Model_Resource_Setup::applyAllUpdates() #5 /var/www/maxigel/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Model_App->_initModules() #6 /var/www/maxigel/app/Mage.php(695): Mage_Core_Model_App->run() #7 /var/www/maxigel/index.php(78): Mage::run() #8 {main} thr in /var/www/maxigel/app/code/local/Maxigel/CategorySettingsByAlex/sql/categorysettingsbyalex_setup/install-1.0.0.php on line 5