Lesson 7- Hardhat Fund Me : No Contract deployed with name PaulFundMe

[Tosinkoa]

I was following the tutorial and tried to run my own test, but when I want to test my contract, it keeps throwing this error:

PS C:\Users\NEW\Desktop\Blockchain-dev-practice\hardhat-fund-me> npx hardhat test


  PaulFundMe
    constructor
      1) "before each" hook for "sets the aggregator addesses correctly"


  0 passing (2s)
  1 failing

  1) PaulFundMe
       "before each" hook for "sets the aggregator addesses correctly":
     Error: No Contract deployed with name PaulFundMe
      at Object.getContract (node_modules\@nomiclabs\hardhat-ethers\src\internal\helpers.ts:447:11)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at runNextTicks (node:internal/process/task_queues:65:3)
      at listOnTimeout (node:internal/timers:528:9)
      at processTimers (node:internal/timers:502:7)
      at Context.<anonymous> (test\unit\PaulFundMe.test.js:11:18)

---------------------------Here is my code snippet--------------------------

const { assert } = require("chai");
const { deployments, ethers, getNamedAccounts } = require("hardhat");

describe("PaulFundMe", async () => {
  let paulFundMe, deployer, MockV3Aggregator;

  beforeEach(async () => {
    deployer = (await getNamedAccounts()).deployer;
    await deployments.fixture(["all"]);
    paulFundMe = await ethers.getContract("PaulFundMe", deployer);
    MockV3Aggregator = await ethers.getContract("MockV3Aggregator", deployer);
  });

  describe("constructor", async () => {
    it("sets the aggregator addesses correctly", async () => {
      const response = await paulFundMe.priceFeed();
      assert.equal(response, MockV3Aggregator.address);
    });
  });
});

[shashikant-burnwal]

Hi @Tosinkoa can you please share your FundMe.sol code as well. It may happen that naming is different.

[shashikant-burnwal]

The contract looks fine. Can you also provide both the deploy codes files as well (01-deploy-... and 00-deploy-....) and hardhat.config.js to investigate further?

[Tosinkoa]

----------------------------------00-deploy-mocks.js------------------------------------

const { network } = require("hardhat");
const { 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) {
    log("Local network detected. Deploying mocks...");
    await deploy("MockV3Aggregator", {
      contract: "MockV3Aggregator",
      from: deployer,
      log: true,
      args: [DECIMALS, INITIAL_ANSWER],
    });
    log("Mock deployed!");
    log("--------------------------------------------------");
  }
};

module.exports.tags = ["all", "mocks"];

----------------------------------01-deploy-fund-me.js------------------------------------

const {
  networkConfig,
  developmentChains,
} = require("../helper-hardhat-config");
const { network } = require("hardhat");
const { verify } = require("../util/verify");

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

  let ethUsdPriceFeedAddress;

  if (developmentChains.includes(network.name)) {
    const ethUsdAggregator = await get("MockV3Aggregator");
    ethUsdPriceFeedAddress = ethUsdAggregator.address;
  } else {
    ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
  }

  const args = [ethUsdPriceFeedAddress];
  const fundMe = await deploy("PaulFundMe", {
    from: deployer,
    args,
    log: true,
    waitConfirmations: network.config.blockConfirmations || 1,
  });

  if (
    !developmentChains.includes(network.name) &&
    process.env.ETHERSCAN_API_KEY
  ) {
    await verify(fundMe.address, args);
  }
  log("---------------------------------------------------------------");
};

module.exports.tags = ["all", "fundme"];

[shashikant-burnwal]

Please make change in 01-deploy-fund-me.js as below (args:args). If that does not fix the error then also provide hardhat.config.js
const fundMe = await deploy("PaulFundMe", { from: deployer, args, \\ Change this to args:args log: true, waitConfirmations: network.config.blockConfirmations || 1, });

[Tosinkoa]

I did something like this and the error still persist:

  const fundMe = await deploy("PaulFundMe", {
    from: deployer,
    args: args,
    log: true,
    waitConfirmations: network.config.blockConfirmations || 1,
  });

-----------------------------Here is my Hardhat.config.js----------------------------------

require("dotenv").config();
require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("hardhat-gas-reporter");
require("solidity-coverage");
require("hardhat-deploy");

task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
  const accounts = await hre.ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

module.exports = {
  // solidity: "0.8.4",
  solidity: {
    compilers: [{ version: "0.8.4" }, { version: "0.6.6" }],
  },
  networks: {
    rinkeby: {
      url: process.env.RINKEBY_URL,
      accounts: [process.env.MY_ACCOUNT],
      chainId: 4,
      blockConfirmations: 6,
    },
  },
  gasReporter: {
    enabled: false,
    currency: "USD",
    outputFile: "gas-report.txt",
    noColors: "true",
    coinmarketcap: process.env.COIN_MARKET_API,
    token: "MATIC",
  },
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
  },
  namedAccounts: {
    deployer: {
      default: 0,
    },
    user: {
      default: 1,
    },
  },
};

[Tosinkoa]

Here is a code sandbox for the project @shashikant-burnwal
https://codesandbox.io/s/gallant-firefly-0efryh

[M1708]

I found a mistake in your deploy-fund-me.js

You are not setting the value for args in the following code
const fundMe = await deploy("PaulFundMe", {
from: deployer,
args,
log: true,
waitConfirmations: network.config.blockConfirmations || 1,
});

I think it should be
const fundMe = await deploy("PaulFundMe", {
from: deployer,
args: args,
log: true,
waitConfirmations: network.config.blockConfirmations || 1,
});

[Tosinkoa]

Yes, I've corrected it, but the error still persist. It still throw same error. And I also redeploy. @M1708

[M1708]

I think the error is because you have declared fundMe but exporting fundme.

const fundMe = await deploy("PaulFundMe",

module.exports.tags = ["all", "fundme"];

Try changing to
module.exports.tags = ["all", "fundMe"];

See if this fixes the error.

[Tosinkoa]

I did the way you instruct me but the error still persist.
I also change all fundMe to paulFundMe but still didnot work

const {
  networkConfig,
  developmentChains,
} = require("../helper-hardhat-config");
const { network } = require("hardhat");
const { verify } = require("../util/verify");

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

  let ethUsdPriceFeedAddress;

  if (developmentChains.includes(network.name)) {
    const ethUsdAggregator = await get("MockV3Aggregator");
    ethUsdPriceFeedAddress = ethUsdAggregator.address;
  } else {
    ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
  }

  const args = [ethUsdPriceFeedAddress];
  const paulFundMe = await deploy("PaulFundMe", {
    from: deployer,
    args: args,
    log: true,
    waitConfirmations: network.config.blockConfirmations || 1,
  });

  if (
    !developmentChains.includes(network.name) &&
    process.env.ETHERSCAN_API_KEY
  ) {
    await verify(paulFundMe.address, args);
  }
  log("---------------------------------------------------------------");
};

module.exports.tags = ["all", "paulFundMe"];

[Tosinkoa]

Here is the link for codesandbox: https://codesandbox.io/s/optimistic-chaum-0q6q7b @M1708

[M1708]

Did you delete artefacts, cache and deployments folders before redeploying?

[Muhammad-Abdullah012]

Are you deploying to hardhat / localhost, if so, then

const paulFundMe = await deploy("PaulFundMe", {
    from: deployer,
    args: args,
    log: true,
    waitConfirmations: network.config.blockConfirmations || 1, //problem is at this line
  });

On local networks, no waiting needs to be done,.. so change code to:

let wait;
if (developmentChains.includes(network.name)) {
    const ethUsdAggregator = await get("MockV3Aggregator");
    ethUsdPriceFeedAddress = ethUsdAggregator.address;
    wait = false;
  } else {
    ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
    wait = true;
  }
const paulFundMe = await deploy("PaulFundMe", {
    from: deployer,
    args,
    log: true,
    waitConfirmations: wait ? network.config.blockConfirmations : undefined,
  });

[Muhammad-Abdullah012]

Try running debugger to see exactly where is error producing..

[Tosinkoa]

I really have a good understanding of debugger, I would learn it along in the course, Thank you so much @Muhammad-Abdullah012

[Muhammad-Abdullah012]

@Tosinkoa First run yarn hardhat clean && yarn hardhat deploy to see if there it deploys correctly,...

[PatrickAlphaC]

Love the help going on here :)

[Tosinkoa]

This didnot work also yarn hardhat clean && yarn hardhat deploy, I also copied @PatrickAlphaC code, and change the contract name, it still dont work

[Tosinkoa]

Is something wrong with my test?

const { assert } = require("chai");
const { deployments, ethers, getNamedAccounts } = require("hardhat");

describe("PaulFundMe", async () => {
  let paulFundMe, deployer, mockV3Aggregator;

  beforeEach(async () => {
    // const accounts = await getSigners()  This is use for getting private keys
    deployer = (await getNamedAccounts()).deployer;
    await deployments.fixture(["all"]);
    paulFundMe = await ethers.getContract("PaulFundMe", deployer);

    mockV3Aggregator = await ethers.getContract("MockV3Aggregator", deployer);
  });

  describe("constructor", async () => {
    it("sets the aggregator addesses correctly", async () => {
      const response = await paulFundMe.priceFeed();
      assert.equal(response, mockV3Aggregator.address);
    });
  });

  describe("fund", async () => {
    it("Fails if you don't send enough ETH", async () => {
      await paulFundMe.fund();
    });
  });
});

[Tosinkoa]

  PaulFundMe
    constructor
      1) "before each" hook for "sets the aggregator addesses correctly"


  0 passing (2s)
  1 failing

  1) PaulFundMe
       "before each" hook for "sets the aggregator addesses correctly":
     Error: No Contract deployed with name PaulFundMe
      at Object.getContract (node_modules\@nomiclabs\hardhat-ethers\src\internal\helpers.ts:447:11)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at runNextTicks (node:internal/process/task_queues:65:3)
      at listOnTimeout (node:internal/timers:528:9)
      at processTimers (node:internal/timers:502:7)
      at Context.<anonymous> (test\unit\PaulFundMe.test.js:11:18)



      at listOnTimeout (node:internal/timers:528:9)
      at processTimers (node:internal/timers:502:7)
      at Context.<anonymous> (test\unit\PaulFundMe.test.js:11:18)

[M1708]

You are exporting "paulFundMe" and trying to get "PaulFundMe"

module.exports.tags = ["all", "paulFundMe"];

paulFundMe = await ethers.getContract("PaulFundMe", deployer);

[Tosinkoa]

When I did paulFundMe it still throw same error

[Tosinkoa]

Patrick does similar thing and also when I change the name to paulFundMe = await ethers.getContract("paulFundMe", deployer); , it still throw the error saying paulFundMe didnot exist

[harshuo2]

@Tosinkoa did you find the solution to your problem?

[Tosinkoa]

Yes thank you. I was using module.export.default

[Tosinkoa]

I forgot to share the answer, I will do that when am using my pc

[harshuo2]

Could you please type it in detail?

[Tosinkoa]

I did module.exports.defaults = async ({ getNamedAccounts, deployments }) => { instead of module.exports = async ({ getNamedAccounts, deployments }) => { in my deployment file.

[deepagarwalcode]

Hey tosinka, in which file did you do this?