Let's Do Some Zeppelin, and Some Ganache and Truffles…
erc721 - Compiling an ERC721URIStorage contract - Stack Overflow
AccessControl suddenly giving error : TypeError: Member "toHexString" not found or not visible after argument-dependent lookup in type(library Strings) - Contracts - OpenZeppelin Forum
ethereum - DeclarationError: Undeclared identifier - although it's present in ERC721.sol - Stack Overflow