Lesson: 9 TypeError: customChains is not iterable

[deepak2301]

I tried changing etherscan api but still getting the error.

I also tried someone else answer on same error but it still didn't work

  customChains: [
            {
                network: "goerli",
                chainId: 5,
                urls: {
                    apiURL: "https://api-goerli.etherscan.io/api",
                    browserURL: "https://goerli.etherscan.io",
                },
            },
        ],

Error

Nothing to compile
reusing "Raffle" at 0x44eF735a4d834FAF969E5fA147C034da9e994453
Verifying..... 
Verifying contract...
TypeError: customChains is not iterable
    at getEtherscanEndpoints (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@nomiclabs/hardhat-etherscan/src/network/prober.ts:33:37)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Environment._runTaskDefinition (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at SimpleTaskDefinition.verifySubtask [as action] (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@nomiclabs/hardhat-etherscan/src/index.ts:220:30)
    at Environment._runTaskDefinition (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at verify (/home/deepak/blockchain-dev/hardhat-raffle/utils/verify.js:9:7)
    at Object.module.exports [as func] (/home/deepak/blockchain-dev/hardhat-raffle/deploy/01-deploy-raffle.js:56:7)
    at DeploymentsManager.executeDeployScripts (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1220:22)

hardhat.config.js

require("@nomicfoundation/hardhat-chai-matchers")
require("@nomiclabs/hardhat-etherscan")
require("hardhat-deploy")
require("solidity-coverage")
require("hardhat-gas-reporter")
require("hardhat-contract-sizer")
require("dotenv").config()
/** @type import('hardhat/config').HardhatUserConfig */

const GOERLI_RPC_URL = process.env.GOERLI_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
const COINMARKET = process.env.COINMARKET
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY

module.exports = {
   defaultNetwork: "hardhat",
   networks: {
      hardhat: {
         chainId: 31337,
         blockConfirmations: 1,
      },
      goerli: {
         chainId: 5,
         blockConfirmations: 1,
         url: GOERLI_RPC_URL,
         accounts: [PRIVATE_KEY],
      },
   },
   gasReporter: {
      enabled: false,
      currency: "USD",
      outputFile: "gas-report.txt",
      noColors: true,
   },

   solidity: "0.8.8",
   namedAccounts: {
      deployer: {
         default: 0,
      },
      player: {
         default: 1,
      },
   },
}```

[pacelliv]

Since the past week the Goerli has experienced a spike transactions, when the network gets too congested verification gets tricky. My recommendation is to continue and verify later, don't waste too much time and energy on this.

[deepak2301]

https://github.com/deepak2301/hardhat-raffle

[pacelliv]

@deepak2301 Your project has too many errors across some files. You need to check the repo of this lesson and compare it with your project to spot the errors.

To help you a bit, you must upgrade @chainlink/contracts to at least 0.5.1 and replace KeepersCompatibleInferface with AutomationCompatibleInterface in your contract. KeepersCompatibleInferface is deprecated and you need the correct interface.

Like I said before, goerli is being shut down and I cannot assure you that testing on this network is sill reliable. Use the Mumbai testnet. Get a new RCP URL from Alchemy for this testnet and get test MATIC.

You will also need a API KEY from Polygonscan to verify the contract.

You need to set a networkConfig for polygonMumbai in the helper-hardhat-config file and add polygonMumbai in the networks config in hardhat.config file.

And remember you first add your subscriptionId to the helper-hardhat-config file and then you deploy the contract, if you do it the other way around. The subscriptionId will be zero by default and you will not get a random number.

[deepak2301]

bro did what you said but im getting this error

Error: ERROR processing /home/deepak/blockchain-dev/hardhat-raffle/deploy/01-deploy-raffle.js:
Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.7.0)
    at Logger.makeError (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
    at Logger.throwError (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
    at Logger.throwArgumentError (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/logger/src.ts/index.ts:285:21)
    at Function.BigNumber.from (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/bignumber/src.ts/bignumber.ts:289:23)
    at NumberCoder.encode (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/abi/src.ts/coders/number.ts:25:27)
    at /home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/abi/src.ts/coders/array.ts:71:19
    at Array.forEach (<anonymous>)
    at pack (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/abi/src.ts/coders/array.ts:54:12)
    at TupleCoder.encode (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/abi/src.ts/coders/tuple.ts:54:20)
    at AbiCoder.encode (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/@ethersproject/abi/src.ts/abi-coder.ts:111:15)
    at DeploymentsManager.executeDeployScripts (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1223:19)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at DeploymentsManager.runDeploy (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1053:5)
    at SimpleTaskDefinition.action (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/index.ts:409:5)
    at Environment._runTaskDefinition (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at SimpleTaskDefinition.action (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/index.ts:555:32)
    at Environment._runTaskDefinition (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at SimpleTaskDefinition.action (/home/deepak/blockchain-dev/hardhat-raffle/node_modules/hardhat-deploy/src/index.ts:640:5)

can you check i updated my github repo: https://github.com/deepak2301/hardhat-raffle

[deepak2301]

@pacelliv can you check i did some changes but still same error

[deepak2301]

@alymurtazamemon can you help please i tried on ploygon testnet to but im getting this error again

 1) Raffle Unit Tests
       fulfillRandomWords
         Works with live ChainlinkKeeprs and ChainLink VRF,we get a random winnner:
     Error: Timeout of 500000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/deepak/blockchain-dev/hardhat-raffle/test/staging/Raffle.staging.test.js)

updated github link
https://github.com/deepak2301/hardhat-raffle