I just tried to upgrade from OC3 to OC4.
The process as such worked fine but trying to visit the shop (store front or admin), I am getting the following error:
Code: Select all
Error: Class "Twig\Loader\FilesystemLoader" not found File: /html/oc/system/library/template/twig.php Line: 36 Backtrace: 0 File: /html/oc/system/library/template.php Line: 30 Class: Opencart\System\Library\Template\Twig Function: __construct Backtrace: 1 File: /html/oc/system/framework.php Line: 182 Class: Opencart\System\Library\Template Function: __construct Backtrace: 2 File: /html/oc/index.php Line: 20 Function: require_once For testing purposes, I installed OC4 all fresh into an empty folder. Here, the error is not present and the shop runs just fine.
Any idea on what could have caused the above error when trying to upgrade?
When I say upgrade, I uploaded the content of the INSTALL folder and overwrote everything on the server but the two config files.
