CMS Made Simple Forums

I applied the patch file for upgrading from CMS Made Simple 1.5.3 "Arecibo" to cms1.11.9 latest version by followed this link.
http://www.siteground.com/tutorials/cms ... pgrade.htm

But i got error while upgrading.

Fatal error: Class 'SMARTY_CMS' not found in /var/www/vhosts/fabricworkroom.com/httpdocs/dev1/lib/classes/class.CmsApp.php on line 394..

How to solve this error?

Are you sure you are using last version of all installed modules?

So instead of reading the official documentation you read a 'tutorial' for upgrading a very old version to another very old version written by a third party back in

I hope you have a backup (database and files) so you can revert to the original setup. Then follow the upgrade procedure for old versions.

User defined tags using smarty or cmsms globals could be the cause. There were a lot of really big changes. If you are able to recover and start again, you'll need to upgrade to each major version up to 1.9.4.3.
Then if there are no major problems, go to 1.10.x. And then finally to 1.11.x.
Be sure to upgrade modules each step of the way eliminating anything that is not compatible with each major version.

Hi,

Could you please explain what are the steps to be follow to upgrade 1.5.3 to 1.11.9?

I cant understand given document.. So i want your explanation step by step..

What's difficult to understand the given document? There isn't much more to explain as http://docs.cmsmadesimple.org/upgrading/old-versions give each step you have to do.