I have upgraded a magento store from 126.96.36.199 to 188.8.131.52 and I have tried to import some products, the initial part works fine, however the import part does not.
1. Click Admin > System > Import/Export > Import;
2. Browse the file to upload;
3. Click Check Data;
4. Magento returns: Checked rows: XXX, checked entities: XXX, invalid rows: 0, total errors: 0;
5. Click Import
Magento displays the following E_NOTICE message:
Notice: Undefined index: _attribute_set in .../app/code/core/Mage/ImportExport/Model/Import/Entity/Product.php on line 1251
Is this a bug?
(I did an export to view the difference, _attribute_set is still a valid field there)