Reason provided by the contract: "Not approved"

[Simoneth]

Hi, I don't really understand if it's a problem with OpenZeppelin imports or something else, but when from Token I approve an Address, and then from Marketplace, using the approved Address, I try to makeSellOffer it says "Not approved"...is this my fault? I'm trying on Remix using this import:

import "https://raw.githubusercontent.com/OpenZeppelin/openzeppelin-contracts/master/contracts/...

[Crelde]

I had the same issue. My problem was that I used setApprovalForAll, which doesn't satisfy the modifer "isMarketable".

Works fine when I do a single approve for the token.