OpenCart Community

I am using 2.1.0.1, use a theme bought on themeforest, but now I bought another too, but, it for 2.3.0.2 and can not install to 2.1.0.1 cause some error (i tried install a clean 2.3.0.2 and install this theme successfully) so I want upgrade my site from 2.1.0.1 to 2.3.0.2. But when I copy and replace all file with new and run install, I received this error: I tried remove all extensions, mods were used, back to default theme, and run script upgrade again but received this error again. Can anyone help me? Thanks you!

You can try to remove file system/modification/system/engine/loader.php or try go to admin > extension > modification and press "refresh".

Hannah00 wrote:You can try to remove file system/modification/system/engine/loader.php or try go to admin > extension > modification and press "refresh".

I tried removed all exts mods and refresh (of course) but still get that errors. Remove that file still nothing change

Have you modified the header.tpl??
Try renaming the header.tpl file to header_old.tpl then upload the header.tpl file from 2.3.0.2 version.
If all is ok then you should be able to edit the new header file

Hi, I fixed this errors, I am so confuse what exactly of this errors. I tried remove all code, reupload code downloaded from opencart official site but still get this error. So I tried open loader.php go to line 86, this is space line without data, I remove this line and save, oh shit, everything OK. Till now I still dont know what the hell which I got????

So it was an empty line causing the error....at least you got it sorted and well done for posting the solution.

You can choose other way to upgrade 2.1 to 2.3: https://www.opencart.com/index.php?rout ... n_id=27239

Hannah00 wrote:You can choose other way to upgrade 2.1 to 2.3: https://www.opencart.com/index.php?rout ... n_id=27239

The migration tool shown in your link is highly misleading, it claims to be free in the Opencart extension store, but it isn't! I wouldn't trust anyone with such misleading advertising.

Also, another common issue with many, if not all, migration tools is that they are unable to do a proper remapping of Opencart countries and zones, including updating customer addresses.

Quite often it is easier just to use PHPMyAdmin with which you can export DB tables in e.g. into CSV format, then modify its format with a spreadsheet software to the required new format, and then import to the new DB of a freshly installed new OpenCart.

Thanks for your recommendation. Hope people can fnd the easy solution to solve their problem!

You can easily upgrade from 2.x.x.x to 2.3 by just uploading all 2.3 upload files to server via FTP and without editing config.php file and run http://www.yoursitelink.com/install/. The theme must be compatible with 2.3 and all 3rd party module also need to be compatible with Opencart 2.3.
After finish login to your admin and refresh modification from admin/extension/modification

For any support, please contact http://www.n2rtechnologies.com

In controller/header.php do this:

//if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/common/header.tpl')) {
// return $this->load->view($this->config->get('config_template') . '/template/common/header.tpl', $data);
//} else {
return $this->load->view('default/template/common/header.tpl', $data);
//}