TypeError:无法读取未定义的属性“长度”--同时使用“硬帽子”进行部署

Question

当我试图在硬件开发链上部署一个Mock合同时，我得到了以下错误。

以下是我的看法：

学习Blockchain，Solidity和Stack Web3 Development JavaScript -32小时课程，由Patrick在FreeCodeCamp YT频道上

当我在上述课程的10:48:53时，我犯了这个错误。我几乎每件事都试过了，但没有任何帮助，但我发现了问题发生的地方。

问题:我认为问题在哪里发生？(12:26)

据我所知，问题就在我们试图部署脚本的线路上，我们正在等待承诺得到回报。

以下是错误：

Error: ERROR processing /Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/deploy/00-deploy-mocks.js:
TypeError: Cannot read property 'length' of undefined
    at getFrom (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/helpers.ts:1713:14)
    at _deploy (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/helpers.ts:533:9)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at _deployOne (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/helpers.ts:1004:16)
    at Object.module.exports [as func] (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/deploy/00-deploy-mocks.js:12:26)
    at DeploymentsManager.executeDeployScripts (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at DeploymentsManager.executeDeployScripts (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1222:19)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at DeploymentsManager.runDeploy (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at SimpleTaskDefinition.action (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/index.ts:584:32)
    at Environment._runTaskDefinition (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at SimpleTaskDefinition.action (/Users/rishavsharma/Documents/working/Web Dev/Blockchain/Freecodecamp/solidity&Block/blockchain-with-js/buyMeACoffee-dapp/node_modules/hardhat-deploy/src/index.ts:669:5)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
rishavsharma@Rishavs-Air buyMeACoffee-dapp % 

下面是我获得错误的代码片段：

const { network } = require("hardhat");
const { developmentChains, DECIMALS, INITIAL_ANSWER } = require("../helper-hardhat-config");

module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments;
    const { deployer } = await getNamedAccounts();
    const chainId = network.config.chainId;


    if (chainId == 31337) {
        console.log("Development network detected! Deploying mocks...");
        const feedMock = await deploy("MockV3Aggregator", {
            contract: "MockV3Aggregator",
            from: deployer,
            log: true,
            args: [DECIMALS, INITIAL_ANSWER],
        });
        log("Price Feed Mock deployed!");
        log("==============================================");
    }
} 
module.exports.tags = ["all", "mocks"];

请帮我解决这个问题，我把这个问题张贴在上，但没有得到任何帮助。

系统配置: MacBook Air M1 2021年-蒙特利12.4，纱线: 1.22.18，白帽: 2.9.6

Answer 1

“我从主人那里得到了答案，”PatrickAlphaC。

当我们在上面的代码中调用await时，hardhat会在我们的hardhat.config.js中查找命名帐户的长度。

我们必须确保下面给出的财产在那里！

namedAccounts: {
    deployer: {
        default: 0, // here this will by default take the first account as deployer
    },
},

这解决了我的问题，我又高兴了！

Answer 2

确保你已经在getNamedAccount().中等待名字必须是正确的。

指定帐户必须有正确的条目如下：

namedAccounts：{部署者：{默认值: 0，部署程序1: 0，}，}，

Answer 3

我在这个问题上也被困了一段时间，并且也在遵循同样的路线。

Cannot read properties of undefined (reading 'length')
at getFrom (/Users/ilima/hh-fcc/hardhat-fundme-fcc/node_modules/hardhat-deploy/src/helpers.ts:1713:14)
at _deploy (/Users/ilima/hh-fcc/hardhat-fundme-fcc/node_modules/hardhat-deploy/src/helpers.ts:533:9)

最初，我是从零开始写作，并不断得到这个错误，并加上硬式npm安装。我决定测试，以防万一，所以我克隆了回购，令人惊讶的是，也在努力解决npm安装问题的硬帽和华夫饼。

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: hardhat-project@undefined
npm ERR! Found: @nomiclabs/hardhat-ethers@0.3.0-beta.13
npm ERR! node_modules/@nomiclabs/hardhat-ethers
npm ERR!   dev @nomiclabs/hardhat-ethers@"npm:hardhat-deploy- ethers@^0.3.0-beta.13" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer @nomiclabs/hardhat-ethers@"^2.0.0" from @nomiclabs/hardhat-waffle@2.0.2
npm ERR! node_modules/@nomiclabs/hardhat-waffle
npm ERR!   dev @nomiclabs/hardhat-waffle@"^2.0.2" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

因此，通过重写它来修复依赖关系，为我解决所有问题，所以尝试如下：

"devDependencies": {
  ...
   "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers@^0.3.0-beta.13",
  ...
 },
 "overrides": {
    "@nomiclabs/hardhat-waffle": {
    "@nomiclabs/hardhat-ethers": "$@nomiclabs/hardhat-ethers"
  }
 }

我从安装建议@nomiclabs/硬帽-华夫饼那里得到了解决方案

现在，我注意到您已经解决了问题，但我也想添加我的解决方案，以防其他人在终端中无法定义部署时使用。在我的例子中，namedAccounts和 fine ()很好。