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How to update OpenCart? A Step by step guide

Installing any unknown software or module is often a difficult task as it requires a great knowledge about the system requirements, software or module settings and other such parameters. I have often witnessed several OpenCart customers who are facing issues while installing this eCommerce platform on their system. This OpenCart platform is an open source shopping cart software that has gained immense popularity in a short span of time among various eCommerce store owners. Different versions of OpenCart has released so far and it is mandatory to keep updating your platform from time to time to include new exciting OpenCart extensions and functionalities into your store. This blog will help various OpenCart customers to upgrade their existing OpenCart platform to the new version without any hurdles. Let us take a step by step approach. Create backup of your OpenCart platform- To accomplish this task, you need to download a copy of the OpenCart files from the web server to your computer through FTP or hosting control panel. You need to perform the database export through phpMyAdmin or you can also backup the database by following the path, OpenCart dashboard -> Tools -> Backup/Restore. Check out the image given below for understanding the above process.

Get the latest OpenCart version downloaded- In order to download the latest OpenCart version, you need to check the link. The download file will be available in the form of a zip file. The user needs to unzip the OpenCart installer file to a location specified on the system for installing the required OpenCart version. It is time to upload the new OpenCart version to server- Now, you can upload the web files through your hosting control panel such as File Manager in cPanel. Apart from this, user can use FTP tools for uploading the web pages and files from a computer system to web server. There, you will be prompted regarding how to handle the files with the same name during the uploading process along with the option to choose overwrite for applying changes in all the files with the same name on the web hosting account by replacing them with the new OpenCart files. After unzipping the OpenCart installer file, you will see a folder named as “upload”. It is required to upload all the files and sub folder from your computer system to the web hosting excluding the files namely “upload/config.php” and “upload/admin/config.php”. Irrespective of the OpenCart version you are upgrading to, it is important to ensure that these two files are excluded during the uploading process to avoid the overwriting of these crucial files. This entire process of uploading the OpenCart files from computer to web server may take some time. Based on the number of files included in the new OpenCart version, the uploading process done on the OpenCart directory located on the web server may take the involved time in the process. Install the OpenCart platform from the web browser-

Every other new OpenCart installation consists of an “install” sub folder present in the OpenCart root directory. Now, it is time to launch the auto-installer from the web browser. For this, you need to open the web browser on your PC or Mac and then enter the OpenCart domain name in the address bar of the browser. You need to add /install/ after the URL of the OpenCart site in your browser address bar and then press the Enter key for starting the OpenCart auto-installer process. As, you are upgrading an existing OpenCart version, it will require comparatively less time than the fresh OpenCart installation. Quick fix tips for a problem free OpenCart upgrade If you are looking to upgrade your OpenCart store without any problem, it is time to follow these quick simple tips for the required process. You need to first post the upgrade script errors problems in the forums. Once, the upgrade is done, it is important to clear browser cookies for avoiding the token errors. You need to load the admin page and then press the Ctrl+F5 keys twice to direct your browser to update the CSS changes. Now, OpenCart users need to follow the path Admin -> Users -> User Groups and then edit the Top Administrator group. It is advised to check all the boxes there. You need to navigate towards Admin and then edit the main System Settings. It is also recommended to update all the fields and then click on the save option inspite of whatever changes you have made. The user has to load the store front and press the Ctrl+F5 twice to direct the browser to make the required modifications in the CSS changes. Note- In case, you encounter any error messages from the front page or through admin dashboard when logged in such as “Use of undefined constant DIR_MODIFICATION OpenCart upgrade error”, ignore it and continue with your upgradation process.

By strictly adhering to the step by step instructions given in this blog post, any OpenCart store owners can upgrade its existing OpenCart installation into the desired higher OpenCart version in an effortless manner. If you further want to improve the functionality of your OpenCart store, you need to take the help of various OpenCart extensions from Knowband store that are packed with multiple features. For more information about other Magento extensions, PrestaShop Addons or OpenCart modules, you need to visit the Knowband store at

How to update OpenCart? A Step by step guide