there is an error coming in.
yarn add hardat-gas-reporter --D
yarn add v1.22.15
[1/4] Resolving packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/hardat-gas-reporter: Not found".
info If you think this is a bug, please open a bug report with the information provided in "/home/thakuradi/hh-fcc/ethers-simple-storage/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

HardhatError: HH700: Artifact for contract "SimpleStorage" not found.

Please I am very baffled how one inch contract deployment address are the same on all network
Please what is the technique behind this

On YouTube, I am on the 08:41:03 mark.

const { ethers, run, network } = require("hardhat")

async function main() {
    const SimpleStorageFactory = await ethers.getContractFactory(
        "SimpleStorage"
    )
    console.log("Deploying contract...")
    const simpleStorage = await SimpleStorageFactory.deploy()
    await simpleStorage.deployed()
    console.log(simpleStorage)
}

This returns the following error:

TypeError: no matching function (argument="key", value="deployed", code=INVALID_ARGUMENT, version=6.6.3)
    at makeError (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/utils/errors.ts:670:21)
    at assert (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/utils/errors.ts:694:25)
    at assertArgument (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/utils/errors.ts:706:5)
    at Interface.getFunctionName (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/abi/interface.ts:542:23)
    at buildWrappedMethod (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/contract/contract.ts:334:34)
    at BaseContract.getFunction (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/contract/contract.ts:859:22)
    at Object.get (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/node_modules/ethers/src.ts/contract/contract.ts:757:39)
    at main (/home/hamza/Documents/JS/Ethersjsx/hardhat/SimpleStorage/scripts/deploy.js:10:25)
    at processTicksAndRejections (node:internal/process/task_queues:95:5) {
  code: 'INVALID_ARGUMENT',
  argument: 'key',
  value: 'deployed'
}

Yarn Version:
1.22.19

HardHat Version:
2.17.0

Node Version:
20.3.1

Guys，When I run this piece of code, I encounter a TypeError. How should I resolve it?

// imports
const { ethers, run, network } = require("hardhat");

// async main
async function main() {
const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage");
console.log("Deploying contract...");

const simpleStorage = await SimpleStorageFactory.deploy();
await simpleStorage.waitForDeployment();
console.log(Deployed contract to: ${simpleStorage.target});
// what happens when we deploy to our hardhat network?

if (network.config.chainId == 11155111 && process.env.ETHERSCAN_API_KEY) {
console.log("Waiting for block confirmations...");
await simpleStorage.deployTransaction.wait(6); //HERE!!!
await verify(simpleStorage.target, []);
}

Hello @PatrickAlphaC,

Hardhat has updated its plugins and move all its plugin to one plugin called @nomicfoundation/hardhat-toolbox. Now when people are installing the packages they are facing issues due to these plugin updates, because they also require changes in the hardhat.config.js file.

I have read the hardhat docs and tried that update on this project (has a similar setup for other projects), and now it is working correctly. I would like to update the projects with new hardhat plugin.

Should I send the pull request?

Please help!

It is KOVAN_RPC_URL in hardhat.config.js and in the readme.

For those of you (and me too) that have very little coding experience yet are following along with this great course I'd thought I'd share my pitfall and solution for the following issue:

If you are installing hardhat as per the instructions in the video you may find yourself installing a newer version of Hardhat that does not allow for the options that are shown in the video. If that should happen to you the following steps can get you back on track to following along with Patrick in the video.

1. If you have already installed a newer version of hardhat we need to remove that to install the version that Patrick is using (which is version 2.9.3). To do so, type 'yarn remove hardhat' in the terminal. This will remove the latest version (type 'yarn list' in the terminal to check and verify if step 1 worked).

2. Install the correct version of hardhat as used in the video. To do so type 'yarn add --dev [email protected]' in the terminal which will install the older version which Patrick is using. After installation you will find that the options are available now.

These two steps have helped me to work around the issues of the newer version.

3. Another issue (that will also apply to later lessons) could be that while running hardhat (via the 'yarn hardhat' command in the terminal) you will not be prompted with a yes/no option to install all the required dependencies but you will be told to do so you yourself. This is really easy to fix as you can copy and paste the message into your terminal. For your convenience here is the command (the following list has more options as this post originally applied to lesson 10 in this coding course):
   yarn add --dev "hardhat@^2.9.3" "@nomiclabs/hardhat-waffle@^2.0.0" "ethereum-waffle@^3.0.0" "chai@^4.2.0" "@nomiclabs/hardhat-ethers@^2.0.0" "ethers@^5.0.0" "@nomiclabs/hardhat-etherscan@^3.0.0" "dotenv@^10.0.0" "eslint@^7.29.0" "eslint-config-prettier@^8.3.0" "eslint-config-standard@^16.0.3" "eslint-plugin-import@^2.23.4" "eslint-plugin-node@^11.1.0" "eslint-plugin-prettier@^3.4.0" "eslint-plugin-promise@^5.1.0" "hardhat-gas-reporter@^1.0.4" "prettier@^2.3.2" "prettier-plugin-solidity@^1.0.0-beta.13" "solhint@^3.3.6" "solidity-coverage@^0.7.16"

If any experts can chime in on any other tips/tricks to help us newbies that would be more than welcome.

From one Patrick (the newbie) to another Patrick (the pro); thanks for sharing your knowledge with us > this may change a lot of lives for the better tips hat to you.

*This is a repost from the original one that applies to Lesson 10.

I have this error at the start of Hardhat section

This is deploy.js:
const { ethers } = require("hardhat");

async function main() {
const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage");
console.log("Deploying contract...");
const simpleStorage = await SimpleStorageFactory.deploy();
await simpleStorage.deployed();
}

main()
.then(() => process.exit(0))
.catch((error) => {
console.error(error);
process.exit(1);
});

after I type: yarn hardhat run scripts/deploy.js
HardhatError: HH700: Artifact for contract "SimpleStorage" not found.
at Artifacts._handleWrongArtifactForContractName (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/artifacts.ts:478:11)
at Artifacts._getArtifactPathFromFiles (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/artifacts.ts:593:19)
at Artifacts._getArtifactPath (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/artifacts.ts:275:17)
at Artifacts.readArtifact (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/artifacts.ts:58:26)
at getContractFactory (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/node_modules/@nomiclabs/hardhat-ethers/src/internal/helpers.ts:99:22)
at main (/Users/enricoyu/Coding/hardhat-simple-storage-fcc/scripts/deploy.js:4:32)
error Command failed with exit code 1.

Error: 0x80370102 The virtual machine could not be started because a required feature is not installed. help me, please!

While the tutorial was done with a prior generation of hardhat, I thought it would be worthwhile stating that under version 6.6.2 (the version that now installs when you follow the YARN commands) the line:

await simpleStorage.deployTransaction.wait(6)

Now fails, as the deployTransaction seems to have been removed. This creates something of a stumbling block for people who are trying to use the wait(6)function for 6 block confirmations.

Error:

TypeError: no matching function (argument="key", value="deployTransaction", code=INVALID_ARGUMENT, version=6.6.2)

There is a function called deploymentTransaction() that appears through intellisense, but if you attempt to chain wait(6), you get the error message:

TypeError: simpleStorage.deploymentTransaction.wait is not a function

So you are not able to wait for block confirmations, and without it you run into the error of the byte code not having been recognised on Etherscan yet as described in the video. Something to be aware of on this particular step if you are running Hardhat v6.x.x.

Hello,

At the end of Lesson 6, during the Typescript section, I ran into an unexpected issue that didn't appear to affect you in the video. Here's the breakdown of what went wrong and how I fixed it:

After copying over the contents of tsconfig.json from this repo, I had no issues converting the deploy and hardhat-config from .js to .ts. However, when I did the same with the block-number task I ran into the following error:

Property 'ethers' does not exist on type 'HardhatRuntimeEnvironment'.ts(2339)

I thought this was odd, but after poking around for a few minutes I noticed this line in the tsconfig.json file I copied:

"include": ["./scripts", "./test"],

It occurred to me that "./tasks" was missing, and as soon as I added that to the list my error disappeared!

However, I find it curious that this didn't appear to be necessary in the video, as there's no sign of the same error in the screenshot of the video below:

It seems possible that this is due to some difference between dependency versions, since I added them myself as I followed along rather than copy your package.json contents. These are the versions specified in mine:

  "devDependencies": {
    "@nomiclabs/hardhat-ethers": "^2.0.0",
    "@nomiclabs/hardhat-etherscan": "^3.1.0",
    "@nomiclabs/hardhat-waffle": "^2.0.0",
    "@typechain/ethers-v5": "^10.1.0",
    "@typechain/hardhat": "^6.1.2",
    "@types/chai": "^4.3.1",
    "@types/mocha": "^9.1.1",
    "@types/node": "^18.0.0",
    "chai": "^4.2.0",
    "dotenv": "^16.0.1",
    "ethereum-waffle": "^3.0.0",
    "ethers": "^5.0.0",
    "hardhat": "^2.9.9",
    "hardhat-gas-reporter": "^1.0.8",
    "prettier": "^2.7.1",
    "prettier-plugin-solidity": "^1.0.0-beta.19",
    "solidity-coverage": "^0.7.21",
    "ts-node": "^10.8.1",
    "typechain": "^8.1.0",
    "typescript": "^4.7.4"
  }

Regardless, this is the modified tsconfig.json file that resolved my error:

{
  "compilerOptions": {
    "target": "es2018",
    "module": "commonjs",
    "strict": true,
    "esModuleInterop": true,
    "outDir": "dist"
  },
  "include": ["./scripts", "./test", "./tasks"],
  "files": ["./hardhat.config.ts"]
}

// imports
const { ethers, run, network } = require("hardhat")
require("@nomicfoundation/hardhat-ethers")

// async main
async function main() {
const SimpleStorageFactory =
await ethers.getContractFactory("SimpleStorage")
console.log("Deploying Contract...")
const simpleStorage = await SimpleStorageFactory.deploy()
await simpleStorage.getDeployedCode()
console.log(Deployed Contract to: ${simpleStorage.target})
// whats happened when we deploy to our hardhat network?
// console.log(network.config)
if (network.config.chainId === 11155111 && process.env.ETHERSCAN_API_KEY) {
console.log("Waiting blocks txes...")
await simpleStorage.deploytransaction().wait(6)
await verify(simpleStorage.target, [])
}
// const currentValue = await simpleStorage.retrieve()
// console.log(Current Value is: ${currentValue})

// update current value
const transactionResponse = await simpleStorage.store(7)
await transactionResponse.wait(1)
const updatedValue = await simpleStorage.retrieve()
console.log(`Updated value is:${updatedValue}`)

}

// async function verify(contractAddress, args) {
const verify = async (contractAddress, args) => {
console.log("Verifying contract...")
try {
await run("verify: verify", {
address: contractAddress,
constuctorAddress: args,
})
} catch (e) {
if (e.message.toLowerCase().inlcudes("already verified")) {
console.log("Already Verified")
} else {
console.log(e)
}
}
}

// main
main()
.then(() => process.exit(0))
.catch((error) => {
console.error(error)
process.exit(1)
})

for some reason my deploy script doesnt even attempt to verify. can anyone help?

TypeError: no matching function (argument="key", value="address", code=INVALID_ARGUMENT, version=6.6.2)
at makeError (/root/hardhat-core/node_modules/ethers/src.ts/utils/errors.ts:670:21)
at assert (/root/hardhat-core/node_modules/ethers/src.ts/utils/errors.ts:694:25)
at assertArgument (/root/hardhat-core/node_modules/ethers/src.ts/utils/errors.ts:706:5)
at Interface.getFunctionName (/root/hardhat-core/node_modules/ethers/src.ts/abi/interface.ts:542:23)
at buildWrappedMethod (/root/hardhat-core/node_modules/ethers/src.ts/contract/contract.ts:334:34)
at BaseContract.getFunction (/root/hardhat-core/node_modules/ethers/src.ts/contract/contract.ts:849:22)
at Object.get (/root/hardhat-core/node_modules/ethers/src.ts/contract/contract.ts:747:39)
at main (/root/hardhat-core/scripts/deploy.js:7:54)
at processTicksAndRejections (node:internal/process/task_queues:95:5) {
code: 'INVALID_ARGUMENT',
argument: 'key',
value: 'address'
}

My code is giving this error and here is the code

const { ethers } = require("hardhat");

async function main() {
  const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage");
  console.log("deploying contract");
  const simpleStorage = await SimpleStorageFactory.deploy();
  await simpleStorage.deployed();
  console.log(`Deployed contract to: ${simpleStorage.address}`);
}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.log(error);
    process.exit(1);
  });

SimpleStorage

    1) Should start with a fav no of zero


  0 passing (2s)
  1 failing

  1) SimpleStorage
       Should start with a fav no of zero:

      ```
AssertionError: expected 'function () {\n        var args = [];…' to equal '0'
      + expected - actual

      -function () {
      -        var args = [];
      -        for (var _i = 0; _i < arguments.length; _i++) {
      -            args[_i] = arguments[_i];
      -        }
      -        return __awaiter(this, void 0, void 0, function () {
      -            var blockTag, overrides, tx, result, value;
      -            return __generator(this, function (_a) {
      -                switch (_a.label) {
      -                    case 0:
      -                        blockTag = undefined;
      -                        if (!(args.length === fragment.inputs.length + 1 && typeof (args[args.length - 1]) === "object")) return [3 /*break*/, 3];   
      -                        overrides = (0, properties_1.shallowCopy)(args.pop());
      -                        if (!(overrides.blockTag != null)) return [3 /*break*/, 2];
      -                        return [4 /*yield*/, overrides.blockTag];
      -                    case 1:
      -                        blockTag = _a.sent();
      -                        _a.label = 2;
      -                    case 2:
      -                        delete overrides.blockTag;
      -                        args.push(overrides);
      -                        _a.label = 3;
      -                    case 3:
      -                        if (!(contract.deployTransaction != null)) return [3 /*break*/, 5];
      -                        return [4 /*yield*/, contract._deployed(blockTag)];
      -                    case 4:
      -                        _a.sent();
      -                        _a.label = 5;
      -                    case 5: return [4 /*yield*/, populateTransaction(contract, fragment, args)];
      -                    case 6:
      -                        tx = _a.sent();
      -                        return [4 /*yield*/, signerOrProvider.call(tx, blockTag)];
      -                    case 7:
      -                        result = _a.sent();
      -                        try {
      -                            value = contract.interface.decodeFunctionResult(fragment, result);
      -                            if (collapseSimple && fragment.outputs.length === 1) {
      -                                value = value[0];
      -                            }
      -                            return [2 /*return*/, value];
      -                        }
      -                        catch (error) {
      -                            if (error.code === logger_1.Logger.errors.CALL_EXCEPTION) {
      -                                error.address = contract.address;
      -                                error.args = args;
      -                                error.transaction = tx;
      -                            }
      -                            throw error;
      -                        }
      -                        return [2 /*return*/];
      -                }
      -            });
      -        });
      -    }
      +0

      at Context.<anonymous> (test\test-deploy.js:14:16)
      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)

error Command failed with exit code 1.

Can anyone please help me 

Hi all!
I've been following the steps from the video and with this code:

const { ethers, run, network } = require("hardhat")

// async main
async function main() {
  const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage")
  console.log("Deploying contract...")
  const simpleStorage = await SimpleStorageFactory.deploy()
  await simpleStorage.deployed()
  console.log(`Deployed contract to: ${simpleStorage.address}`)
  }

main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error)
        process.exit(1)
    })

I get the following error:

yarn run v1.22.19
$ /home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/.bin/hardhat run scripts/deploy.js --network sepolia
Deploying contract :)
TypeError: no matching function (argument="key", value="deployed", code=INVALID_ARGUMENT, version=6.6.1)
    at makeError (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:670:21)
    at assert (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:694:25)
    at assertArgument (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:706:5)
    at Interface.getFunctionName (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/abi/interface.ts:542:23)
    at buildWrappedMethod (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:334:34)
    at BaseContract.getFunction (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:849:22)
    at Object.get (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:747:39)
    at main (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/scripts/deploy.js:7:23)
    at processTicksAndRejections (node:internal/process/task_queues:95:5) {
  code: 'INVALID_ARGUMENT',
  argument: 'key',
  value: 'deployed'
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

After googling I discovered that there is a new version of hardhat (or ethers?) so those functions had been changed, so I updated my code to this:

async function main() {
    console.log("Deploying contract :)")
    const simpleStorage = await ethers.deployContract("SimpleStorage")
    await simpleStorage.waitForDeployment()
    console.log(`Deployed contract to: ${await simpleStorage.getAddress()}`)
    if (network.config.chainId === 11155111 && process.env.ETHERSCAN_API_KEY) {
        await simpleStorage.deployTransaction.wait(6)
        await verify(await simpleStorage.getAddress(), [])
    }
}

async function verify(contractAddress, args) {
    console.log("Verifying contract :)")
    try {
        await run("verify:verify", {
            address: contractAddress,
            constructorArgsParams: args,
        })
    } catch (e) {
        if (e.message.toLowerCase().includes("already verified")) {
            console.log("Already verified!")
        } else {
            console.log(e)
        }
    }
}

main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error)
        process.exit(1)
    })

But then I get the following error:

yarn hardhat run scripts/deploy.js --network sepolia
yarn run v1.22.19
$ /home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/.bin/hardhat run scripts/deploy.js --network sepolia
Deploying contract :)
Deployed contract to: 0x3d3Cf67b7E2110f934a56A8020252421079b1120
TypeError: no matching function (argument="key", value="deployTransaction", code=INVALID_ARGUMENT, version=6.6.1)
    at makeError (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:670:21)
    at assert (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:694:25)
    at assertArgument (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/utils/errors.ts:706:5)
    at Interface.getFunctionName (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/abi/interface.ts:542:23)
    at buildWrappedMethod (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:334:34)
    at BaseContract.getFunction (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:849:22)
    at Object.get (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/node_modules/ethers/src.ts/contract/contract.ts:747:39)
    at main (/home/user/Documents/learning/blockchain/smart-contracts-learning/hardhat-simple-storage/scripts/deploy.js:9:29)
    at processTicksAndRejections (node:internal/process/task_queues:95:5) {
  code: 'INVALID_ARGUMENT',
  argument: 'key',
  value: 'deployTransaction'
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

So my question would be, is there a new version of deployTransaction that I should be using? Or which version of hardhat/ethers should I specify with yarn so I can use the code from the course?
Thanks :)

no network error during deployment

SEPOLIA_RPC_URL=https://eth-sepolia.g.alchemy.com/v2/your-api-key
PRIVATE_KEY= 26cf5e0fcef9ff22611152f5dfd9214669ac807d7ade8d24266e9ac9b109bb69

'could not detect network',

When I run the following command, there is an error, and the address given cannot query the transaction information, but the ether of the testnet has decreased, how to solve the following error?

npx hardhat run scripts/deploy.js --network sepolia
Deploying contract...
Deployed contract to: 0x07Dd85d9E00e9C8dB0200ace73ec66C11f4e2f44
Error: could not decode result data (value="0x", info={ "method": "retrieve", "signature": "retrieve()" }, code=BAD_DATA, version=6.7.1)
at makeError (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\utils\errors.ts:685:21)
at assert (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\utils\errors.ts:702:25)
at Interface.decodeFunctionResult (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\abi\interface.ts:916:15)
at staticCallResult (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\contract\contract.ts:332:35)
at processTicksAndRejections (node:internal/process/task_queues:95:5)
at staticCall (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\contract\contract.ts:289:24)
at Proxy.retrieve (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\node_modules\ethers\src.ts\contract\contract.ts:337:41)
at main (C:\Users\Jamscs\solidity\hardhat-simple-storage-fcc\scripts\deploy.js:16:24) {
code: 'BAD_DATA',
value: '0x',
info: { method: 'retrieve', signature: 'retrieve()' }
}

`ratalviper@DESKTOP-MFGC82P:~/hh-fcc/hardhat-simple-storage-fcc$ yarn hardhat
yarn run v1.22.15
$ /home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/node_modules/.bin/hardhat
An unexpected error occurred:

Error: Cannot find module 'hardhart/config'
Require stack:

• /home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/tasks/block-number.js
• /home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/hardhat.config.js
• /home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js
• /home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js
  at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
  at Function.Module._load (node:internal/modules/cjs/loader:778:27)
  at Module.require (node:internal/modules/cjs/loader:1005:19)
  at require (node:internal/modules/cjs/helpers:102:18)
  at Object. (/home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/tasks/block-number.js:1:18)
  at Module._compile (node:internal/modules/cjs/loader:1103:14)
  at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
  at Module.load (node:internal/modules/cjs/loader:981:32)
  at Function.Module._load (node:internal/modules/cjs/loader:822:12)
  at Module.require (node:internal/modules/cjs/loader:1005:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/tasks/block-number.js',
  '/home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/hardhat.config.js',
  '/home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js',
  '/home/ratalviper/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js'
  ]
  }`

Both screenShots attached for block-number.js & hardhat.cponfig.js

I installed the coverage plugin, I even did a hardhat clean but I am still receiving this error:

I googled a bit, but I was unable to find a working solution (even tried installed the 0.8.0-beta.1 coverage plugin did not help.

Please advise.
Thank you!

yarn run v1.22.15
$ /home/sv/hh-fcc/hardhat-simple-storage-fcc/node_modules/.bin/hardhat coverage --show-stack-traces

Version
=======
> solidity-coverage: v0.8.0-beta.1

Instrumenting for coverage...
=============================

> SimpleStorage.sol

Compilation:
============

Nothing to compile
Error in plugin solidity-coverage: TypeError: cur._node._vm.on is not a function

HardhatPluginError: TypeError: cur._node._vm.on is not a function
    at SimpleTaskDefinition.action (/home/sv/hh-fcc/hardhat-simple-storage-fcc/node_modules/solidity-coverage/plugins/hardhat.plugin.js:245:35)
    at Environment._runTaskDefinition (/home/sv/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:308:14)
    at Environment.run (/home/sv/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:156:14)
    at main (/home/sv/hh-fcc/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/cli/cli.ts:269:7)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.```

ethers version "6.10.0"
hardhat version "2.19.4"

There seems to be a problem with this piece of code： await SimpleStorageFactory.deploy();

I don't know how to resolve it

const { ethers, run } = require("hardhat");

async function main() {
  const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage");
  const simpleStorage = await SimpleStorageFactory.deploy();
}

main().catch(error => {
  console.error(error);
  process.exitCode = 1;
});

the error i got

node deploy.js
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
    at main (/home/santhiya_1321/hh-fcc/ethers-simple-storage-fcc/deploy.js:6:41)
    at Object.<anonymous> (/home/santhiya_1321/hh-fcc/ethers-simple-storage-fcc/deploy.js:27:1)
    at Module._compile (node:internal/modules/cjs/loader:1103:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)
    at node:internal/main/run_main_module:17:47

const { ethers } = require("ethers");
const fs = require("fs-extra");

// async main
async function main() {
  const provider = new ethers.providers.JsonRpcProvider(
    "HTTP://127.0.0.1:7545"
  );

  const wallet = new ethers.Wallet(
    "0x284ede9545b2639b2ec29a5bc7a78cade4d320470a7a99eb560a700017dc591b",
    provider
  );
  const abi = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi", "utf-8");
  const binary = fs.readFileSync(
    "./SimpleStorage_sol_SimpleStorage.bin",
    "utf-8"
  );

  const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
  console.log("Please wait we are deploying our contract");
  //code to deploy our contract
  const contract = await contractFactory.deploy();
}

// main
main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

Hi all,

Posting this here just in case you run into the same problem and require a solution:

If you follow along with the code for the verification step (09:06:20 in the video) you'll notice that Patrick skips over the actual testing of the verification step. However, if you are running the code anyway to try and verify by deploying the script as it stands (running "yarn hardhat run scripts/deploy.js --network rinkeby" with the verify function in your code) you might run into the following error:

[Error: ENOENT: no such file or directory, open 'C:\Users.....
errno: -4058,
code: 'ENOENT',
syscall: 'open',
path: 'C:\Users....

Should this happen to you there is an easy fix. Try "yarn hardhat clean" in your terminal and then once again proceed to run "yarn hardhat run scripts/deploy.js --network rinkeby". This should resolve the issue.

Thanks Patrick for the great course and for anyone and everyone else: good luck on your coding endeavors.

Hi everyone

I am in chapter 6 and currently deploying on the sepolia test network.
The deployment is working but veryfing is failing.

The problem lies in these two lines:

  console.log(`Deployed contract to: ${simpleStorage.address}`); &
  await verify(simpleStorage.address, []);

The console gives a hint:
Deployed contract to: undefined

For some reason, I can't read the address of the deployed contract.

The rest of the code:

const { ethers, run, network } = require("hardhat");

async function main() {
  const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage");
  console.log("Deploying contract...");
  const simpleStorage = await SimpleStorageFactory.deploy();
  await simpleStorage.waitForDeployment();
  console.log(`Deployed contract to: ${simpleStorage.address}`);
  if (network.config.chainId === 11155111 && process.env.ETHERSCAN_API_KEY) {
    await simpleStorage.deploymentTransaction().wait(6);
    await verify(simpleStorage.address, []);
    console.log(network.config);
  }
}

async function verify(contractAddress, args) {
  console.log("Verifiying contract...");
  try {
    await run("verify:verify", {
      address: contractAddress,
      constructorArguments: args,
    });
  } catch (e) {
    // e = any error
    if (e.message.toLowerCase().includes("already verified")) {
      console.log("Already verified!");
    } else {
      console.log(e);
    }
  }
}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

Here's my code, compiles perfectly well:

But while deploying it, the following error occurs:

Please Advise...

The error you encountered is due to a change in the Ethers.js library. Let’s address this step by step:

The function deployed() has been deprecated and is no longer available.
Instead, you should use waitForDeployment().

Corrected Code:
Replace await simpleStorage.deployed(); with await simpleStorage.waitForDeployment();.
This change should resolve the issue.

Hope this helps someone!

An unexpected error occurred:

Error: Cannot find module './tasks/block-number'
Require stack:

• C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\hardhat.config.js
• C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\core\config\config-loading.js
• C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\cli\cli.js
• C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\cli\bootstrap.js
  at Function.Module._resolveFilename (node:internal/modules/cjs/loader:1075:15)
  at Function.Module._load (node:internal/modules/cjs/loader:920:27)
  at Module.require (node:internal/modules/cjs/loader:1141:19)
  at require (node:internal/modules/cjs/helpers:110:18)
  at Object. (C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\hardhat.config.js:3:1)
  at Module._compile (node:internal/modules/cjs/loader:1254:14)
  at Object.Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
  at Module.load (node:internal/modules/cjs/loader:1117:32)
  at Function.Module._load (node:internal/modules/cjs/loader:958:12)
  at Module.require (node:internal/modules/cjs/loader:1141:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  'C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\hardhat.config.js',
  'C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\core\config\config-loading.js',
  'C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\cli\cli.js',
  'C:\Users\rs851\OneDrive\Desktop\ether-simple-storage\hardhat-simple-storage\node_modules\hardhat\internal\cli\bootstrap.js'
  ]
  }
  error Command failed with exit code 1.
  info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Error HH801: Plugin @nomicfoundation/hardhat-toolbox requires the following dependencies to be installed: @nomicfoundation/hardhat-network-helpers, @nomicfoundation/hardhat-chai-matchers, @types/mocha, @typechain/ethers-v5, @typechain/hardhat, ts-node, typescript.

After adding Etherscan ABI to hardhat.config, i was trying to verify with yarn hardhat, then i ran into this error,

• Invalid value undefined for HardhatConfig.networks.rinkeby.url - Expected a value of type string.
  • Invalid account: #0 for network: rinkeby - Expected string, received undefined

To learn more about Hardhat's configuration, please go to https://hardhat.org/config/

below is my hardhat.config
require("@nomiclabs/hardhat-waffle");
require("dotenv").config()
require("@nomiclabs/hardhat-etherscan")
// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
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);
}
});

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

/**

• @type import('hardhat/config').HardhatUserConfig
  */
  const RINKEBY_RPC_URL=process.env.RINKEBY_RPC_URL
  const PRIVATE_KEY=process.env.PRIVATE_KEY
  const ETHERSCAN_API_KEY=process.env.ETHERSCAN_API_KEY

module.exports = {
defaultNetwork:"hardhat",
networks:{
rinkeby:{
url:RINKEBY_RPC_URL,
accounts:[PRIVATE_KEY],
chainId:4,

},

},
solidity: "0.8.8",
etherscan:{
apikey:ETHERSCAN_API_KEY,
}
};

yarn hardhat run scripts/deploy.js
when ever I am running this command, it's shows this Error

An unexpected error occurred:

Error: Cannot find module './tasks/block-number'
Require stack:
- /root/folder/hardhat-simple-storage-fcc/hardhat.config.js
- /root/folder/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js
- /root/folder/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
    at Function.Module._load (node:internal/modules/cjs/loader:778:27)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/root/folder/hardhat-simple-storage-fcc/hardhat.config.js:3:1)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/root/folder/hardhat-simple-storage-fcc/hardhat.config.js',
    '/root/folder/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js',
    '/root/folder/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js'
  ]
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

I'm trying to run

yarn hardhat test

here is my code

const { assert } = require("chai")
const { ethers } = require("hardhat")

describe("SimpleStorage", function () {
 
    let simpleStorageFactory, simpleStorage

    beforeEach(async function () {
        simpleStorageFactory = await ethers.getContracttFactory(
            "SinmpleStorage"
        )
        simpleStorage = await simpleStorageFactory.deploy()
    })
    it("Shoule start with a favorite number of 0", async function () {
        const currentValue = await simpleStorage.retrieve()
        const expectedValue = "0"
        // expect
        assert.equal(currentValue.toString(), expectedValue)
    })
    // it()
})

And this is the error

yarn run v1.22.19
$ /home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/.bin/hardhat test
An unexpected error occurred:

TypeError: Test argument "title" should be a string. Received type "undefined"
    at createInvalidArgumentTypeError (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/mocha/lib/errors.js:268:13)
    at new Test (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/mocha/lib/test.js:23:11)
    at context.it.context.specify (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/mocha/lib/interfaces/bdd.js:87:18)
    at Suite.<anonymous> (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/test/test-deploy.js:25:5)
    at Object.create (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/mocha/lib/interfaces/common.js:148:19)
    at context.describe.context.context (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/node_modules/mocha/lib/interfaces/bdd.js:42:27)
    at Object.<anonymous> (/home/minomeis/hh-fcc/hardhat-simple-storage-fcc/test/test-deploy.js:9:1)
    at Module._compile (node:internal/modules/cjs/loader:1112:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1166:10)
    at Module.load (node:internal/modules/cjs/loader:988:32) {
  code: 'ERR_MOCHA_INVALID_ARG_TYPE',
  argument: 'title',
  expected: 'string',
  actual: 'string'
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

I've already search on Google but doesn't find the solution，could somebody can help me thanks！

const {ethers} = require("hardhat")
    //**my package.json doesnt look same as patrick's as well, it's lacking a lot of files**
async function main() {
    const SimpleStorageFactory = await ethers.getContractFactory("SimpleStorage")
    console.log("DEploying COntract..")

    const simpleStorage= await SimpleStorageFactory.deploy();
    await simpleStorage.deployed()


}

main()
  .then(() => process.gexit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

  

yarn hardhat run scripts/deploy.js
yarn run v1.22.19
warning ../../../package.json: No license field
$ /Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/.bin/hardhat run scripts/deploy.js
An unexpected error occurred:

Error: Cannot find module '@nomicfoundation/hardhat-toolbox'
Require stack:

• /Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/hardhat.config.js
• /Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js
• /Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js
• /Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/bootstrap.js
  at Function.Module._resolveFilename (node:internal/modules/cjs/loader:1077:15)
  at Function.Module._load (node:internal/modules/cjs/loader:922:27)
  at Module.require (node:internal/modules/cjs/loader:1143:19)
  at require (node:internal/modules/cjs/helpers:110:18)
  at Object. (/Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/hardhat.config.js:1:1)
  at Module._compile (node:internal/modules/cjs/loader:1256:14)
  at Object.Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
  at Module.load (node:internal/modules/cjs/loader:1119:32)
  at Function.Module._load (node:internal/modules/cjs/loader:960:12)
  at Module.require (node:internal/modules/cjs/loader:1143:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/hardhat.config.js',
  '/Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/core/config/config-loading.js',
  '/Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/cli.js',
  '/Users/pranjay/Desktop/etherr/hardhat-simple-storage-fcc/node_modules/hardhat/internal/cli/bootstrap.js'
  ]
  }
  error Command failed with exit code 1.
  info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Code:

require("@nomicfoundation/hardhat-toolbox")
require("dotenv").config()

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY

/** @type import('hardhat/config').HardhatUserConfig */

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        sepolia: {
            URL: SEPOLIA_RPC_URL,
            account: [PRIVATE_KEY],
            chainId: 11155111,
        },
    },
    solidity: "0.8.8",
}

Error:

~/folder/hardhat-fcc$ yarn hardhat run ignition/deploy.js --network sepolia
yarn run v1.22.22
$ /home/chakra/folder/hardhat-fcc/node_modules/.bin/hardhat run ignition/deploy.js --network sepolia
Error HH8: There's one or more errors in your config file:

  * Invalid value undefined for HardhatConfig.networks.sepolia.url - Expected a value of type string.

To learn more about Hardhat's configuration, please go to https://hardhat.org/config/

For more info go to https://hardhat.org/HH8 or run Hardhat with --show-stack-traces
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Error HH100: Network rinkeby doesn't exist

For more info go to https://hardhat.org/HH100 or run Hardhat with --show-stack-traces
error Command failed with exit code 1.

const { ethers, run, network } = require("hardhat")
require("@nomicfoundation/hardhat-verify")

async function verifyContract() {
const chainId = network.config.chainId

const simpleStorageFactory =
    await ethers.getContractFactory("SimpleStorage")

const args = []

console.log(`Deploying...`)
const simpleStorage = await simpleStorageFactory.deploy(...args)
await simpleStorage.waitForDeployment()
console.log(`Deployed!`)
console.log(`Simple Storage Address: ${simpleStorage.target}`)

console.log(`Waiting for block confirmations...`)
await simpleStorage.waitForDeployment() // Wait for 1 confirmation
console.log(`Confirmed!`)

// Only verify on testnets or mainnets.
if (chainId != 31337 && process.env.ETHERSCAN_API_KEY) {
    await simpleStorage.waitForDeployment(6)
    await verify(simpleStorage.target, args) // Passing the target for verification
}

const currentValue = await simpleStorage.retrieve()
console.log(`Current Value is: ${currentValue}`)

const transactionResponse = await simpleStorage.store(7)
await transactionResponse.wait(1)
const updatedValue = await simpleStorage.retrieve()
console.log(`Updated Value is: ${updatedValue}`)

}

const verify = async (contractTarget, args) => {
// Changed parameter name from contractAddress to contractTarget
console.log("Verifying contract...")
try {
await run("verify:verify", {
address: contractTarget, // Changed from address to contractTarget
constructorArguments: args,
})
console.log("Verification successful!")
} catch (e) {
if (e.message.toLowerCase().includes("already verified")) {
console.log("Already verified!")
} else {
console.log("Verification failed:", e)
}
}
}

verifyContract()
.then(() => process.exit(0))
.catch((error) => {
console.error("Error:", error)
process.exit(1)
})

Hello,
I've just opened this issue to show, how to call addPerson function in deploy.js and writing its test case in test.js, in order to test all the lines of SimpleStorage.sol.

deploy.js

console.log("Adding person...")
    await addPerson(simpleStorage, "Bilge Kaan Gençdoğan", 7)

    async function addPerson(contract, name, favoriteNumber) {
        const transaction = await contract.addPerson(name, favoriteNumber)
        await transaction.wait()
        console.log("Person added successfully.")
    }

test.js

    it("Adding people and their favorite number to Mapping", async function () {
        const expectedPerson = {
            name: "Bilge Kaan Gençdoğan",
            favoriteNumber: "7",
        }

        // Call the addPerson function
        await addPerson(expectedPerson.name, expectedPerson.favoriteNumber)

        // Retrieve the favorite number for the added person
        const favoriteNumber = await simpleStorage.nameToFavoriteNumber(
            expectedPerson.name,
        )

        // Assert that the favorite number matches the expected value
        assert.equal(favoriteNumber.toString(), expectedPerson.favoriteNumber)

        // Retrieve the person's details from the contract
        const person = await getPerson(expectedPerson.name)

        // Assert that the retrieved person's details match the expected values
        assert.equal(person.name, expectedPerson.name)
        assert.equal(
            person.favoriteNumber.toString(),
            expectedPerson.favoriteNumber,
        )
    })

    // Function to add a person
    async function addPerson(name, favoriteNumber) {
        const transaction = await simpleStorage.addPerson(name, favoriteNumber)
        await transaction.wait()
        console.log("Person added successfully.")
    }

    // Function to retrieve a person's details from the contract
    async function getPerson(name) {
        const favoriteNumber = await simpleStorage.nameToFavoriteNumber(name)
        return { name, favoriteNumber }
    }
}

With these line of code, if you run "yarn hardhat coverage" you will see that you test all your code.

Thank you.