Unable to add combinations

[chris1d]

Another day and another problem. Trying to create combinations and everytime I try I get "An unexpected error occurred. [PrestaShop\PrestaShop\Core\Domain\Product\Combination\Exception\CannotAddCombinationException code 0]"

 

Googled but no answer to this one. Honestly the latest versions of prestashop is buggy as heck. 

Any solutions to this please?

[MEG Venture]

If you enabled the debug mode and if you do not see any detailed errors about this bug, it is probably a database errror. Maybe a combination is trying to be created as a duplicate. If you are building the website from scracth, I would delete all attributes defined in the website, then I would check the database after the deletion to see whether any instance of combination is left on the database. If it is the case, I would manually delete them as well. Then I would retry creating combinations.

[ccristian]

The same problem here. When triyng to generate combinations it gives me this error message: An unexpected error occurred. [PrestaShopException code 0]

 

PrestaShop 8.2.0

XAMPP for Windows

 

 

[Knowband Plugins]

Check for the XAMPP PHP error logs and also the Prestashop error log inside the [PS_ROOT_DIRECTORY]/var/log

Share the log here if anything related to same. 

[ccristian]

10 hours ago, Knowband Plugins said:

Check for the XAMPP PHP error logs and also the Prestashop error log inside the [PS_ROOT_DIRECTORY]/var/log

Share the log here if anything related to same. 

Thank you for triyng to help me.

I enabled the Debug mode and the error was changing into this one: An unexpected error occurred. [PrestaShopException code 0] Property "Product->date_add" is not valid.

Xampp error log show me this:

[2025-03-07 20:01:31] cache.WARNING: Failed to save key "PrestaShopBundle%5CEntity%5CFeatureFlag" of type array: rename(F:\xampp\htdocs\shopname\var\cache\dev\pools\32q+lHAiTJ\75559c4f4c04,F:\xampp\htdocs\shopname\var\cache\dev\pools\32q+lHAiTJ\R\V\En8lLbHBbcWgKDZo0lPQ): Access is denied (code: 5) {"key":"PrestaShopBundle%5CEntity%5CFeatureFlag","exception":"[object] (ErrorException(code: 0): rename(F:\\xampp\\htdocs\\shopname\\var\\cache\\dev\\pools\\32q+lHAiTJ\\75559c4f4c04,F:\\xampp\\htdocs\\shopname\\var\\cache\\dev\\pools\\32q+lHAiTJ\\R\\V\\En8lLbHBbcWgKDZo0lPQ): Access is denied (code: 5) at F:\\xampp\\htdocs\\shopname\\vendor\\symfony\\symfony\\src\\Symfony\\Component\\Cache\\Traits\\FilesystemCommonTrait.php:115)"} []

[2025-03-07 20:01:46] php.INFO: User Deprecated: Since api-platform/core 2.7: The Doctrine annotation ApiPlatform\Core\Annotation\ApiResource is deprecated, use the PHP attribute ApiPlatform\Metadata\ApiResource instead. {"exception":"[object] (ErrorException(code: 0): User Deprecated: Since api-platform/core 2.7: The Doctrine annotation ApiPlatform\\Core\\Annotation\\ApiResource is deprecated, use the PHP attribute ApiPlatform\\Metadata\\ApiResource instead. at F:\\xampp\\htdocs\\shopname\\vendor\\symfony\\deprecation-contracts\\function.php:25)"} []

These are just two lines of code from thousands available in "shopname/var/log".

 

Edited March 7 by ccristian
writting errors (see edit history)