Fatal error: Unsupported operand types in Magento

Fatal error: Unsupported operand types in /public_html/app/code/core/Mage/ImportExport/Model/Export/Entity/Product.php on line 657

It has very simple solution. Please follow below step.

Just open /app/code/core/Mage/ImportExport/Model/Export/Entity/Product.php file

Find : $dataRow += $stockItemRows[$productId];

Replace with : $dataRow = array_merge($dataRow,$stockItemRows[$productId]);

 

Enjoy it.