Lesson 6: Trying to deploy "yarn hardhat run scripts/deploy.js --network sepolia " but keep getting an error

[TheyAskWho]

Hi, I'm new to coding, I was working on my code but I ended up with getting an error every time I tried deploying

"yarn hardhat run scripts/deploy.js --network sepolia "

anyone know what could be the problem? I seen few questions asked online about a similar issue but didn't work for me
here's my code.

hardhat.config.js

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

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

module.exports = {
  solidity: "0.8.8",
  defaultNetwork: "hardhat",
  networks: {
    hardhat: {},
    Sepolia:{
      url: SEPOLIA_RPC_URL,
      accounts: [PRIVATE_KEY],
      chainId: 11155111,

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

deploy.js

// imports
const { ehters, 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}`)
    if (network.config.chainId === 11155111 && process.env.ETHERSCAN_API_KEY) {
     await simpleStorage.deployTransaction.wait(6)
     await verify(simpleStorage.address, [])

    }

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

    // Update the 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) {
  console.log("Verifying contract...")
  try {
  await run("verify:verify", {
    address: contractAddress,
    constructorArguments: args, 
  })
  } catch (e) {
    if (e.message.toLowerCase().includes("already verified")){
      console.log("Already Verified!")
  } else {
    console.log(e)
}
}
}

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

Error

Error HH100: Network sepolia doesn't exist

[Nlferu]

Hello @TheyAskWho

Please change your hardhat.config.js into below:

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

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

module.exports = {
  solidity: "0.8.8",
  defaultNetwork: "hardhat",
  networks: {
    hardhat: {},
// Just rename it from Sepolia into sepolia
    sepolia:{
      url: SEPOLIA_RPC_URL,
      accounts: [PRIVATE_KEY],
      chainId: 11155111,

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

and also check if your helper-hardhad-config is setup as below:

const networkConfig = {
    31337: {
        name: "localhost",
    },
    11155111: {
        name: "sepolia",
    },
}

[TheyAskWho]

Thank You so much feel a bit silly it was the lower case in "sepolia" I was missing, got it deployed, now I can continue with the course.😁