TypeError: Greeter.deployed(.).greet不是函数

Question

获取错误代码：

  address payable owner;
  constructor ()  
  {
    owner= payable(msg.sender);
  }
  function kill() public
  {
    if(msg.sender== owner)
    {selfdestruct(owner);}

  }
}

contract greeter is mortal{
  string greeting;
  constructor (string memory _greeting) {
    greeting = _greeting;
  }
  function setGreeting (string memory _greeting) public {
    greeting = _greeting;
    
  }
  function greet() public view returns (string memory)
  {
    return greeting;    
  }
}

Answer 1

根据松露文档，.at功能将产生一个承诺。根据您在终端中查询的内容，语法不应该更像：

(await greeter.at(address)).greet()

Answer 2

谢谢你提出来补充等待..。不要忘记将异步添加到您的函数中。

module.exports = async function (deployer) {
    deployer.deploy(greeter, 'Hi Hello', { gas: 6700000 });
};