How do I disable Magento Compiler?

Article ID #1136
Revision: 1.2
Last update: 2013-01-20

Magento Compiler feature should be disabled on any changes in loaded Magento classes, in other words, you need to disable Magento Compilation every time before installing new extension or initiating upgrade/downgrade/installation or removal of any Magento module.

 

To disable Magento Compiler you can use one of the following methods:

 

Admin Interface

  • navigate to System > Tools > Compilation page and click on Disable button:

  • Flush Magento cache

 

Disabling Magento compiler when Magento Admin Backend is inaccessible / down

When Magento backend is down or inaccessible you still can disable Magento compiler either via SSH access or any access to store filesystem via FTP/SCP or any filemanager.

Console/SSH

  • Check current compilation status
    $ php -f shell/compiler.php -- state
    Compiler Status:          Enabled
    Compilation State:        Compiled
    Collected Files Count:    6042
    Compiled Scopes Count:    4
  • Disable Magento compilation:
    $ php -f shell/compiler.php -- disable
    Compiler include path disabled
  • Clear all compiled files
    $ php -f shell/compiler.php -- clear
    Compilation successfully cleared
  • Ensure that compiler is disabled now by checking its status:
    $ php -f shell/compiler.php -- state
    Compiler Status:          Disabled
    Compilation State:        Not Compiled
    Collected Files Count:    0
    Compiled Scopes Count:    0
  • Flush Magento cache

 

FTP/Filemanager/Filesystem

  • delete includes directory or rename it to any other name (_includes.unused for example):
    ftp :~> mv ./includes ./includes.unused
  • Flush Magento cache
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