PHP Fatal error: Class 'QueryCache' not found

[smarmyclothes]

Long story short, I've been attempting to upgrade from 1.3.9 to 1.5.4. After trying the traditional route of upgrade, I decided a clean install actually made more sense and would probably be simpler, considering I want to totally revamp my store anyway. Easier said than done, of course.

I installed a clean version of 1.5.4 in a subdirectory for testing
I created a new DB for the test install and imported my current DB into it
I ran zc_install.
My admin panel works. My shop does not:

http://smarmyclothes.com/testclean/

The error in the debug logs is:

PHP Fatal error:  Class 'QueryCache' not found in /home/smarmy8/public_html/testclean/includes/autoload_func.php on line 79

I searched and found this thread:
https://www.zen-cart.com/showthread....ad_func-php%29

I followed the suggestions: re-uploaded /includes/classes/query_cache.php and /includes/autoload_func.php several times.
I even deleted them and uploaded fresh, just to make sure. But the problem (and the debug error) persists.

Any help is greatly appreciated, because I am lost.

[DrByte]

Chances are your /includes/init_includes/ files are not all new, and perhaps you've got files in the /includes/init_includes/overrides/ folder that are from a previous version and need updating if you intend to keep them.

Or, your /includes/auto_loaders/ folder has outdated or damaged files.

[smarmyclothes]

This is a clean install, so there aren't any overrides. I haven't touched any of the files except for adding the two configure files.

I deleted /includes/init_includes/ and /includes/auto_loaders/ in their entirety and re-uploaded just now. Same error in the error log.

Should I delete/re-upload the entire includes directory? Or start over the entire installation process?

[lhungil]

I would try another clean install to a clean DB (no tables) and clean folder on the filesystem (download new copy of distribution Zen Cart archive to be on safe side). Make sure to use the same DB prefix as live site when installing Zen Cart. Let Zen Cart generate new configure.php files. Ensure the new clean install works (both store and admin). If all is good, then follow the "rebuild site on new version" article on this website.

Not unusual to see issues when coping old configure files - especially when upgrading to a new Major version (almost always better in this case to just generate new ones). Rare to see issues with the DB upgrade (unless import was partial or corrupt), but following this + the rebuild process should help isolate where in the process things are failing. This method also usually results in Debug logs when an error occurs.

It may also be useful to know what version of PHP is being detected by zc_install.

[smarmyclothes]

Thank you, I'll try that. I was just thinking it was too bad I didn't make a fresh database first, so I could at least figure out where things went awry. I'll do that this time.

[smarmyclothes]

Just wanted to check in and say that after starting over with a fresh database and a fresh install, things seem to be working. Thank you for the help!