The official website of the code, according to the tutorial, into the ethereum the wallet

The following statements will produce warning, wallet errors, do you have met, how should solve?
Interface tokenRecipient {function receiveApproval (address _from, uint256 _value, address _token, bytes _extraData) public; }

CodePudding user response:

The function receiveApproval (address _from, uint256 _value, address _token, bytes _extraData) external; Use this to replace the warning function