Magento 1.9 Upgrade- Common Problems and Solutions

I am sure many of you trying to upgrade your existing Magento Community Website to the newest 1.9 Community Edition. When we want to upgrade we need a proper planning and also it will be really helpful if we know prior, the common problems/mistakes that we do/face during upgrade so that we can take precautions. Through this blog article ‘Magento 1.9 Upgrade- Common Problems and Solutions’ I have tried to gather all the reported problems and solutions which are posted in Magento Forum.

Upgrade Problem from 1.4 to 1.9

Error in file: “/home/www/

mysql4-upgrade-” – SQLSTATE[HY000]: General error: 1025 Error 
on rename of ‘./bastafloracz03/core_url_rewrite’to ‘./bastafloracz03/#sql2-1084-2bad7b’ (errno: 152)

#0 /home/www/
Resource/Setup.php(645): Mage::exception(‘Mage_Core’, ‘Error in file: …’)

#1 /home/www/
Resource/Setup.php(437): Mage_Core_Model_Resource_Setup->_modifyResourceDb
(‘upgrade’, ‘0.8.28’, ‘’)

#2 /home/www/
Resource/Setup.php(320): Mage_Core_Model_Resource_Setup->_upgradeResourceDb(‘0.8.28’, ‘’)
#3 /home/www/
Resource/Setup.php(235): Mage_Core_Model_Resource_Setup->applyUpdates()
#4 /home/www/
App.php(417): Mage_Core_Model_Resource_Setup::applyAllUpdates()
#5 /home/www/
App.php(343): Mage_Core_Model_App->_initModules()
#6 /home/www/ Mage_Core_
#7 /home/www/ Mage::run(”, ‘store’)
#8 {main}

Solution Given:

  1. Do the upgrade on replica/test site
  2. Revert the test/replica site back to default theme
  3. Do the upgrade in steps, first upgrade from 1.4 to a vanilla 1.6 and then
    upgrade 1.6 to 1.9

System Configuration- Blank White Page after upgrade to

Upgraded Magento to, when I login to the backend of the site the system
configuration page just shows blank.

Solution Given:

Remove all files except config.xml from the following path: /app/code/core/Mage/

Problems in WYSIWYG Editor- Not Saving Links

Upgraded to latest 1.9 but having problems with the WYSIWYG Editor which is not
saving links on the page. When I add a picture and link it to another page, the link
doesn’t get saved.

I have cleared cache, logged out/in etc. without any luck.

Workaround Given:

Disable the editor and post the links using HTML, then again you can enable the WYSIWYG

Footer link block not visible on RWD_Default responsive theme

I just made an upgrade to Magento and it was working fine but when I change to
theme RWD_Default responsive theme, my footer link block is gone in footer.

Solution Given:

  • On the new template rwd_deafult, they have a new block for Company.
  • Create a new block to footer and name it like this

Footer Links Company


Fatal error: Call to a member function getFallbackScheme()

After upgrade from 1.7.x to 1.9.x I get the following error.

Fatal error: Call to a member function getFallbackScheme() on a non-object in \path\to\magento\app\code\core\Mage\Core\Model\Design\Package.php on line 447

Call Stack
#    Time    Memory    Function    Location
1    0.0005    260888    {main}( )    ..\index.php:0
2    0.0040    556952    Mage::run( )    ..\index.php:87
3    0.0134    1588376    Mage_Core_Model_App->run( )    ..\Mage.php:684
4    1.9193    10152944    Mage_Core_Controller_Varien_Front->dispatch( )    ..\App.php:354
5    1.9250    10448624    Mage_Core_Controller_Varien_Router_Standard->match( )    ..\Front.php:172
6    1.9313    10984432    Mage_Core_Controller_Varien_Action->dispatch( )    ..\Standard.php:250
7    1.9313    10985008    Mage_Core_Controller_Front_Action->preDispatch( )    ..\Action.php:407
8    1.9347    11273192    Mage_Core_Controller_Varien_Action->preDispatch( )    ..\Action.php:64
9    1.9386    11387536    Mage_Core_Model_App->loadArea( )    ..\Action.php:512
10    1.9386    11387864    Mage_Core_Model_App_Area->load( )    ..\App.php:774
11    1.9445    11809080    Mage_Core_Model_App_Area->_loadPart( )    ..\Area.php:93
12    1.9445    11809080    Mage_Core_Model_App_Area->_initTranslate( )    ..\Area.php:121
13    1.9459    11929296    Mage_Core_Model_Translate->init( )    ..\Area.php:146
14    2.1086    14626416    Mage_Core_Model_Translate->_loadThemeTranslation( )    ..\Translate.php:141
15    2.1086    14626576    Mage_Core_Model_Design_Package->getLocaleFileName( )    ..\Translate.php:277
16    2.1086    14626984    Mage_Core_Model_Design_Package->getFilename( )    ..\Package.php:472

Solution Given:

Possibly the error generated because of some extension.

  1. Disable All your extensions and check if you are getting this error
  2. Enable existing extensions one by one and keep checking if you are getting
    this error
  3. Identify the extension which causing this error, probably that extension
    version is incompatible with Magento 1.9

Also Read:

Intehgrate your Magento Stores with ERP