Error on adding product to cart

This is caused by changes to AddToCartForm.php

If you have a module that modifies the cart form such as a contrib module like commerce_pado or commerce_vado then check if there is an update that addresses this error.

If you have a custom module that modifies the add to cart form then the code needs to be fixed there.

Hi,
I faced the same in one of my commerce projects which was working fine with commerce-2.36 but after upgrading to 2.40 ver (the latest version) I got the same issue.

So as per the @rhovland in #2 🐛 Error on adding product to cart Needs work I checked all my custom codes and disabled all the modules and themes but I was still facing the same issue so I downgraded to commence-2.40 to 2.36 and its resolved my issue.

I also checked with 2.37. 2.38, 2.39 but I got the same problem.

So, it means that there is not an issue with the custom code but there is something that is passing incorrect values for anonymous sessions which is creating this issue.

Drupal: 10.3
PHP: 8.3
MariaDb: 10.11

I am reopening this issue as a bug for the 2.40 version.

This isn't the right fix, the fix is to call the parent create method if you're swapping the add to cart form.

For 2.40 version some services are missing during building AddToCartForm. So i added a constructor to get them.

But do you have any custom or contrib code extending the add to cart form? If that is the case, they should be calling the parent create() method.

yes, you are right. The form is extended changed the create method. Works as expected.
Thank you.