Cannot deploy mocks...unknown error

[darshilmistry]

The error

Error: ERROR processing /home/darshil/Code/Blockchain/HardHatFundMe/deploy/deployMocks.js:
TypeError: Cannot read properties of undefined (reading 'length')
    at getFrom (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/helpers.ts:1727:14)
    at _deploy (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/helpers.ts:534:9)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at _deployOne (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/helpers.ts:1005:16)
    at Object.module.exports [as func] (/home/darshil/Code/Blockchain/HardHatFundMe/deploy/deployMocks.js:14:9)
    at DeploymentsManager.executeDeployScripts (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:330:14)
    at Environment.run (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:163:14)
    at DeploymentsManager.executeDeployScripts (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1222:19)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.runDeploy (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:330:14)
    at Environment.run (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat-deploy/src/index.ts:584:32)
    at Environment._runTaskDefinition (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:330:14)
    at Environment.run (/home/darshil/Code/Blockchain/HardHatFundMe/node_modules/hardhat/src/internal/core/runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (/home/darshil/Code/Blockchain/HardHatFundMe/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.

depoy mocks

const { network } = require("hardhat")
const { devChains, decimals, initialAnswer } = require("../helper-hardhat-config")



module.exports = async ({ getNamedAccounts, deployments }) => {

    const { deploy, log } = deployments
    const { deployer } = getNamedAccounts()
    const chainName = network.name

    if (devChains.includes(network.name)) {
        log("Local Network>>>>>>>>>>>Deploying Mocks")
        await deploy("MockV3Aggregator", {
            from: deployer,
            log: true,
            args: [decimals, initialAnswer]
        })

        log("Mocks Deployed")
        log(">>>---------------------------------<<<")
    }

}

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

hardhat config

require("@nomicfoundation/hardhat-toolbox");
require("hardhat-deploy")


/** @type import('hardhat/config').HardhatUserConfig */
module.exports = {
  solidity: {
    compilers: [
      {version: "0.8.8"},
      {version: "0.6.6"}
    ]
  },

  namedAccounts: {
    deployer: {
      default: 0
    }
  },


  defaultNetwork: "hardhat",
  networks: {
    hardhat: {
        chainId: 31337,
    },
    localhost: {
      url: "http://127.0.0.1:8545/",
      chainId: 31337,
  },
},

}

helper hardhat config

const networkConfig = {
    137: {
        name: "Matic",
        address: "some address in here "
    }
} 

const devChains = [ "hardhat", "localhost" ]

const decimals = 8
const initialAnswer = 200000000000

module.exports = {
    networkConfig, 
    devChains,
    decimals,
    initialAnswer
}

[alymurtazamemon]

@darshilmistry use await before getNamedAccounts

-const { deployer } = getNamedAccounts()
+const { deployer } = await getNamedAccounts()

[ejmorian]

@darshilmistry I had the same error, and it was also because i missed the await keyword ...

the getNamedAccounts() is an async function so if you don't use it, it will just return undefined because you did not specify that the program needs to wait for the value to be fetched before continuing the line of code.

[darshilmistry]

that din't did the job

[darshilmistry]

I removed the network section and it started working... Then I removed localhost and replaced it with ganache but now the ganache network is not connecting even if its active. however the deployments are happening on the default hardhat chain. so it can be called solved, I suppose...