@abcoathup I have actually the same problem with code ( Gas estimation failed for mint in ERC721 on Remix ) which is more or less a copy of ERC721PresetMinterPauserAutoId.sol deployed on kovan : 0x09f951AC8e7414965c243E5B9817718813A2F1ce MINTER_ROLE = bytes32: 0x9f2df0fed2c77648de5860a4cc508cd0818c8…

I found the problem, totally unrelated to the ERC721 contract :grimacing: This was the error message (which did not really help) transact to DTOParticipationNFT.mint pending ... transact to DTOParticipationNFT.mint errored: Error: The execution failed due to an exception. Bad instruction fe My er…

I even have the same error with a stripped down version with no access control :frowning: pragma solidity >=0.6.0 <0.8.0; import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.3.0/contracts/token/ERC721/ERC721.sol"; import "https://github.com/OpenZeppelin/openzeppelin-contracts/b…

Gas estimation error when minting ERC721

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abcoathup January 12, 2021, 3:38am 4

Hi @sven.meyer ,

Welcome to the community

Glad you were able to resolve. If you get a chance, it would be great to know What are you working on?

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Gas estimation error when minting ERC721

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