Products in cart report error when we have grouped or bundle product

[mihaifaget]

When viewing the report 'Products in cart' the report gives error if we have a bundle or a grouped product in cart.

Preconditions

Magento Version 2.1.9

Steps to reproduce

Add a grouped or a bundle product to cart. Go to admin->Reports->Marketing->Products in cart and loop through pages or export to csv/excel.

Expected result

Should see the Products in cart report or download csv/xml

Actual result

Exception #0 (Exception): Notice: Undefined offset: [productId] in vendor/magento/module-reports/Model/ResourceModel/Quote/Item/Collection.php on line 222

[magento-engcom-team]

@mihaifaget, thank you for your report.
We've created internal ticket(s) MAGETWO-83435 to track progress on the issue.