I am getting this error while migrating
Contract:
pragma solidity ^0.5.16;
contract Hello {
string message;
constructor() public {
message = "Hello, World";
}
function getGreetings() public view returns (string memory)
{
return message;
}
function setGreetings(string memory _message) public{
message = _message;
}
}
2_deploy_contracts.js
var Hello = artifacts.require("./Hello.sol");
module.exports = function(deployer) {
deployer.deploy(Hello);
};