OPENCART UPGRADE
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This version of opencart comes with a universal upgrade script that allows you to update your store from as far back as v1.3.2 to the latest version of OpenCart without having to install each version in between. The script is still in beta so there may be some quirks. 

Errors received are mostly informational. There is a good chance that the error occurred because the table no longer exists or the change had already been made. In these cases, there is nothing to worry about. 

Please be sure to post any errors shown on the forums so that we may address these errors in the future.


If using a version older than OpenCart v1.3.2, you will need to first upgrade all the in between versions until you reach 1.3.2. Then you can run this script.



Upgrade Steps
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STEP 1. BACKUP YOUR EXISTING STORE FILES AND DATABASE!!!

STEP 2. Upload ALL new files on top of your current install EXCEPT config.php and admin/config.php

STEP 3. If using 1.4.0 or earlier, Edit your config.php file in the root path of your store. 
Remove the following lines:

	//HTTP

	define('HTTP_SERVER', 'http://www.mysite.com/');

	define('HTTP_IMAGE', 'http://www.mysite.com/image/');



	// HTTPS

	define('HTTPS_SERVER', '');

	define('HTTPS_IMAGE', '');

STEP 4. For all versions, be sure that the admin/config.php file has the HTTPS section filled in.
Even if not using SSL, fill this in with the corresponding HTTP data for your site so that both HTTP and HTTPS entries have the same data:

	// HTTPS

	define('HTTPS_SERVER', 'http://www.mysite.com/admin/');

	define('HTTPS_IMAGE', 'http://www.mysite.com/image/');

STEP 5. Browse to http://www.yourstore.com/shop/install/upgrade.php

STEP 6. After about 10 seconds you should see the Upgrade Success message or a list of errors.

STEP 7. Post any upgrade script errors problems in the forums

STEP 8. Clear any cookies in your browser to avoid getting token errors.

STEP 9. Load the admin page & press Ctrl+F5 to force the browser to update the css changes.

STEP 10. Goto Admin->Users->User Groups and Edit the Top Adminstrator group. Check All boxes.

STEP 11. Goto Admin and Edit the main System Settings. Update all fields and click save, even if nothing changed.

STEP 12. Load the store front & press Ctrl+F5 to force the browser to update the css changes.



Possible Errors and Solutions:
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ERROR: You see an error like "Undefined method https..."
SOLUTION: Your custom modules need to be updated to 1.4.1 or later to remove the use of the url class

ERROR: You are redirected to the admin login page with "Invalid Token Session".
SOLUTION: Your custom modules need to be updated to 1.4.8 to use the new token security.  You can also bypass this token check by adding the custom mods to the ignore list on the "Server" tab of the System Settings area in admin

ERROR: Items won't add to cart. Animation shows but cart remains empty. 
SOLUTION: This is due to the products not having a legitimate weight class or length class. The upgrade can cause this, or it was missing for some languages. Verify that there is a weight class and length class for each language you have on your site. Also be sure that the product have actual product ids set. Edit and resave them and see if the add to cart works correctly.



Please post any other errors in the forum threads regarding this version



That's It!
OpenCart Dev Team
