"1062 Duplicate entry '159-18-2' for key 'id_product'"

[Mvela]

I'm having some troubles while uploading my product combinations to prestashop. I have alredy created the different atributes and the values for each. I have also created the parent product into prestashop.

 

When I try to upload the csv including combinations I recieve this kind of error. The first number reffer to the product ID, and the second one to the atribute ID. 

The strange thing is that I have the atribute alredy created on prestashop and it's on the ID 2. After checking the DDBB there is no duplicated entry for atribute ID (18) even it's created.

 

This is an example of what I'm trying to upload:

Product ID*Attribute (Name:Type:Position)*Value (Value:Position)*CosteParent SKUReference #Supplierreference#EAN13QuantityMinimal quantityLow stock levelReceive a low stock alert by emailVisibility

159Color:select:0Negro:14.95WoP-00099Wo-000454D-23267584355659383520150both

159Color:select:0Rosa:04.91WoP-00099Wo-000455D-22725184355659256730150both

160Color:select:0Negro:115.77WoP-00100Wo-000456D-22507469466890088353150both

 

I'm using prestashop 8.0