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Installing extension breaks admin login.

Installing extension breaks admin login.

 

After installing this extension,

 

https://www.magentocommerce.com/magento-connect/product-attachments-extension.html

 

the login for the administrator doesn't work anymore (see error message at the bottom).  Somebody suggested that I disable compilation. If I disable compilation the extension can be installed, but when I re-enable compilation, magento breaks down again, with the same error message.

 

Thanks in advance!

 

 

error report :

 

: a:5:{i:0;s:75:"Mage registry key "_singleton/fileuploader/observer_product" already exists";i:1;s:2690:"

#0 /home/sel/domains/xxxx/public_html/app/Mage.php(223): Mage::throwException('Mage registry k...')

#1 /home/sel/domains/xxxx/public_html/app/Mage.php(477): Mage::register('_singleton/file...', false)

#2 /home/sel/domains/xxxx/public_html/includes/src/__default.php(21823): Mage::getSingleton('fileuploader/ob...')

#3 /home/sel/domains/xxxx/public_html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('core_block_abst...', Array)

#4 /home/sel/domains/xxxx/public_html/includes/src/__default.php(1988): Mage::dispatchEvent('core_block_abst...', Array)

#5 /home/sel/domains/xxxx/public_html/includes/src/__default.php(28232): Mage_Core_Block_Abstract->setLayout(Object(Mage_Core_Model_Layout))

#6 /home/sel/domains/xxxx/public_html/includes/src/__default.php(28248): Mage_Core_Model_Layout->createBlock('adminhtml/page_...', 'head')

#7 /home/sel/domains/xxxx/public_html/includes/src/__default.php(28015): Mage_Core_Model_Layout->addBlock('adminhtml/page_...', 'head')

#8 /home/sel/domains/xxxx/public_html/includes/src/__default.php(27981): Mage_Core_Model_Layout->_generateBlock(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element))

#9 /home/sel/domains/xxxx/public_html/includes/src/__default.php(27982): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))

#10 /home/sel/domains/xxxx/public_html/includes/src/__default.php(14024): Mage_Core_Model_Layout->generateBlocks()

#11 /home/sel/domains/xxxx/public_html/includes/src/__default.php(13949): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()

#12 /home/sel/domains/xxxx/public_html/includes/src/Mage_Adminhtml_Controller_Action.php(275): Mage_Core_Controller_Varien_Action->loadLayout(NULL, true, true)

#13 /home/sel/domains/xxxx/public_html/app/code/core/Mage/Adminhtml/controllers/IndexController.php(81): Mage_Adminhtml_Controller_Action->loadLayout()

#14 /home/sel/domains/xxxx/public_html/includes/src/__default.php(14098): Mage_Adminhtml_IndexController->loginAction()

#15 /home/sel/domains/xxxx/public_html/includes/src/__default.php(18514): Mage_Core_Controller_Varien_Action->dispatch('login')

#16 /home/sel/domains/xxxx/public_html/includes/src/__default.php(18044): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))

#17 /home/sel/domains/xxxx/public_html/includes/src/__default.php(20861): Mage_Core_Controller_Varien_Front->dispatch()

#18 /home/sel/domains/xxxx/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array)

#19 /home/sel/domains/xxxx/public_html/index.php(87): Mage::run('', 'store')

#20 {main}";s:3:"url";s:21:"/index.php/sel-admin/";s:11:"script_name";s:10:"/index.php";s:4:"skin";s:5:"admin";}

1 REPLY 1

Re: Installing extension breaks admin login.

Apparently you're using compilation. Disable it from System > Tools > Compilation before installing anything.

Tanel Raja