XF 1.2 After 1.2.4, getting invalid model error

[Andy.N]

On PHP 5.5.7 and upgrade my XF to 1.2.4 this morning. @Mike
Now, when I update an addon, received this error in ACP

Server Error
Invalid model 'XenForo_Model_TemplateModification' specified

XenForo_Model::create() in XenForo/Controller.php at line 101
XenForo_Controller->getModelFromCache() in XenForo/ControllerAdmin/StyleAbstract.php at line 113
XenForo_ControllerAdmin_StyleAbstract->_getModificationModel() in XenForo/ControllerAdmin/StyleAbstract.php at line 50
XenForo_ControllerAdmin_StyleAbstract->_getTemplateAddEditResponse() in XenForo/ControllerAdmin/Template.php at line 90
XenForo_ControllerAdmin_Template->actionEdit() in XenForo/FrontController.php at line 347
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
XenForo_FrontController->run() in /home/nginx/domains/quantnet.com/public/admin.php at line 13

On the main ACP, there is There are manual rebuild processes that have been stopped before completion. Click here to complete them.

When I click on them, I will receive this error

Server Error

Invalid model 'XenForo_Model_TemplateModification' specified

XenForo_Model::create() in XenForo/DataWriter.php at line 1921
XenForo_DataWriter->getModelFromCache() in XenForo/DataWriter/Template.php at line 562
XenForo_DataWriter_Template->_getModificationModel() in XenForo/DataWriter/Template.php at line 180
XenForo_DataWriter_Template->_verifyPrepareTemplate() in XenForo/DataWriter/Template.php at line 244
XenForo_DataWriter_Template->reparseTemplate() in XenForo/Model/Template.php at line 1110
XenForo_Model_Template->reparseTemplate() in XenForo/Model/Template.php at line 1167
XenForo_Model_Template->reparseAllTemplates() in XenForo/Deferred/TemplateReparse.php at line 20
XenForo_Deferred_TemplateReparse->execute() in XenForo/Deferred/Atomic.php at line 61
XenForo_Deferred_Atomic->execute() in XenForo/Model/Deferred.php at line 252
XenForo_Model_Deferred->runDeferred() in XenForo/Model/Deferred.php at line 378
XenForo_Model_Deferred->_runInternal() in XenForo/Model/Deferred.php at line 331
XenForo_Model_Deferred->run() in XenForo/ControllerAdmin/Tools.php at line 147
XenForo_ControllerAdmin_Tools->actionRunDeferred() in XenForo/FrontController.php at line 347
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
XenForo_FrontController->run() in /home/nginx/domains/quantnet.com/public/admin.php at line 13

 

[Jeremy]

Attempt to re-upload your files.

 

[Andy.N]

Thanks all.
Downloading 1.2.4 again and uploading all the files via FTP help. It's a bit weird since I have been upgrading my site by ftp the zip file, unzip, overwrite the files without problem. It's much faster that way.

 

[SneakyDave]

Maybe your zip file was corrupt? That has happened to me in the past.