Lazy minting with EIP712

Hi, I am trying to incorporate the lazy minting to my erc721 contract with eip712.
The question is that when I want to extend this contract, as I see in some examples, I get the error message:

"TypeError: Contract "MyContractNFT" should be marked as abstract..."

Any suggestion or alternative to implement lazy minting?


Hello @damianlluch

This error is not caused by lazy minting. It says that your contract "should be marked as abstract". This is often caused by the fact that you have functions defined but not implemented. I'm pretty sure the rest of the error message tells you that, and tells you which ones are missing.