Item with the same ID already exists.

[Goad]

I am on Magento CE 2.2.6 and I am starting to see this error more and more on my products making it impossible to edit them.

Item (Magento\Catalog\Model\Product\Interceptor) with the same ID "419" already exists.

How do I fix the products with this error code and how do I stop this from happening?

[Sunil Patel]

Hello @Goad 

are you using enterprise edition of magento? 

[Goad]

No, as stated I am on CE 2.2.6

[Sunil Patel]

Hello @Goad 

it happen if same entry into exist into catalog_product_entity or some other table

vendor/magento/framework/Data/Collection.php

public function addItem(\Magento\Framework\DataObject $item)
    {
        $itemId = $this->_getItemId($item);

        if ($itemId !== null) {
            if (isset($this->_items[$itemId])) {
                throw new \Exception(
                    'Item (' . get_class($item) . ') with the same ID "' . $item->getId() . '" already exists.'
                );
            }
            $this->_items[$itemId] = $item;
        } else {
            $this->_addItem($item);
        }
        return $this;
    }

into thrown 

if (isset($this->_items[$itemId])) {
echo $itemId;exit;
                throw new \Exception(
                    'Item (' . get_class($item) . ') with the same ID "' . $item->getId() . '" already exists.'
                );
            }

by using you will get itemId that contain such an issue

hope it will help you.

[Goad]

I think a lot of what you are saying is lost in translation.

Are you saying I should modify my collection.php? If so, can you be a bit more clear what needs to be changed?

[Sunil Patel]

@Goad 

i give the file name and debug which product id create issue