將合約部署到 rinkbey 沒有任何作用

我一直在嘗試將我的契約部署到 Rinkbey，但似乎什麼也沒發生。

我之前已經在本地將合約部署到 ganache RPC 並使用truffle migrate 它工作正常，我能夠毫無問題地呼叫已部署合約的方法。

之後，我在 truffle.js 中添加了以下幾行

rinkeby: {
 host: "127.0.0.1", // Connect to geth on the specified
 port: 8545,
 from: "xxxxxxxxxxxxxxxx", // find it from geth console by typing `eth.accounts` use the first one
 network_id: 4,
 gas: 5000000 
}

所以它變成了

module.exports = {
 // See <http://truffleframework.com/docs/advanced/configuration>
 // to customize your Truffle configuration!
 networks: {
   development: {
     host: "127.0.0.1",
     port: 8545,
     network_id: "*"
   },
   rinkeby: {
     host: "127.0.0.1", // Connect to geth on the specified
     port: 8545,
     from: "xxxxxxxxxxxx", // find it from geth console by typing `eth.accounts` use the first one
     network_id: 4,
     gas: 5000000 // Gas limit
   }
 }
};

我migrations/1_initial_migration.js的如下：

var Migrations = artifacts.require("./Migrations.sol");

module.exports = function(deployer) {
 deployer.deploy(Migrations);
};

如下 contracts/Migrations.sol：

pragma solidity ^0.4.17;

contract Migrations {
 address public owner;
 uint public last_completed_migration;

 modifier restricted() {
   if (msg.sender == owner) _;
 }

 function Migrations() public {
   owner = msg.sender;
 }

 function setCompleted(uint completed) public restricted {
   last_completed_migration = completed;
 }

 function upgrade(address new_address) public restricted {
   Migrations upgraded = Migrations(new_address);
   upgraded.setCompleted(last_completed_migration);
 }
}

之後，我停止本地執行geth並執行以下命令來解鎖帳戶以準備將契約部署到 rinkbey

geth --rinkeby --rpc --rpcapi db,eth,net,web3,personal --unlock="xxxxxxxxxxxxxxxx"

然後在不同的終端視窗中執行以下命令

truffle compile; truffle migrate --network rinkeby

並得到了這個輸出

Using network 'rinkeby'.

Network up to date.

雖然我期待它應該顯示我完成了到 rinkbey 和契約地址的遷移，但它只是一直說Network is up to date。即使我編輯了我的契約，也有點思考，這可能會引發新的遷移。但這並沒有幫助。知道我在這裡做錯了什麼嗎？

更新：我在某處讀過，我需要刪除該build文件夾，所以我做到了。然後跑truffle compile; truffle migrate --network rinkeby了，這次得到了以下結果：

Compiling ./contracts/Migrations.sol...
Compiling ./contracts/addition.sol...
Writing artifacts to ./build/contracts

Using network 'rinkeby'.

Network up to date.

還是看不到已部署的合約地址？

創建一個名為 2_deploy_contracts.js 的新文件，該文件將在初始遷移後自動呼叫

1_initial_migration.js 只會更新已經部署的遷移合約

var myContract = artifacts.require("MyContract");

module.exports = function(deployer) {
 deployer.deploy(myContract);
};

引用自：https://ethereum.stackexchange.com/questions/43154