Product duplication - error 500/duplication failed

[Italcom]

As the title says - i am using Prestashop 1.7.5.2  PHP 7.1.33

When i try and duplicate a product, be it through mass action or its own specific product page, i am greeted by a "Duplication failed" (from the mass action) or a 500 internal server error (from the product page).

I am able to create new products, and the error 500 stops if i turn on debug mode: i get an "impossible to update settings" error in the page instead and no duplicated product.

 

Does anybody have any idea of what it could be or what i could do to find the problem (and the corresponding solution to this)?

Thanks in advance.

[idnovate.com]

Have you turned on DEBUG mode to see the error?

[Italcom]

Yes, i have tried that - i do not see any errors tho, instead of an error 500 it simply returns a red "impossible to update settings" in place of the green box once you try and duplicate from the product page. Duplicating as a mass action simply returns a "Duplication failed" message in the modal box.

[idnovate.com]

You should check the network response in console (Ctrl + Shift + J) and maybe you have more information.

[Italcom]

I have an update: apparently, the problem is only connected to the duplication of imgs.

Despite the error, it now creates a duplicate (without product pictures)

[Italcom]

I put up a local staging copy of the website: it seems there i can't even duplicate - it creates copies with ID 0 that go in error 500 if i try to open them

i tried turning off every non-ps module, i tried switching to the base theme - no changes.

[Italcom]

Any news? Here are some screenshots of the debug mode, it tells me this:

Quote

Attempted to call an undefined method named "duplicatePrices" of class "Product".
Did you mean to call e.g. "duplicateShops" or "duplicateTags"?

If I duplicate any product it gives me this error. Please help, thanks!!

 

[musicmaster]

In the original /src/Adapter/Product/AdminProductDataUpdater.php this line is missing. There are other differences too. 

So the question is where this is coming from. You might do a text search on your shop to see whether duplicatePrices can be found anywhere else in your code.

[idnovate.com]

Is it from an override?

[Oliver Eason]

Hi, 

Just thought I would share I've literally just been having the same issue. I deleted the 'Reference' for the product hit duplicate and it worked. 

Hopwfully it may be as simple for everyone else.