NomicLabsHardhatPluginError: Failed to obtain list of solc versions. Reason: Connect Timeout Error

[decentralized-86]

The Error

NomicLabsHardhatPluginError: Failed to obtain list of solc versions. Reason: Connect Timeout Error
    at getVersions (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\solc\version.ts:46:11)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at getLongVersion (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\solc\version.ts:18:20)
    at SimpleTaskDefinition.verifySubtask [as action] (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\index.ts:306:7)
    at Environment._runTaskDefinition (D:\Market Place\Backend-MarketPlace\node_modules\hardhat\src\internal\core\runtime-environment.ts:311:14)
    at Environment.run (D:\Market Place\Backend-MarketPlace\node_modules\hardhat\src\internal\core\runtime-environment.ts:159:14)
    at verify (D:\Market Place\Backend-MarketPlace\utils\verify.js:6:9)
    at Object.module.exports [as func] (D:\Market Place\Backend-MarketPlace\deploy\01_deploy_nft_marketplace.js:32:5)
    at DeploymentsManager.executeDeployScripts (D:\Market Place\Backend-MarketPlace\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (D:\Market Place\Backend-MarketPlace\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1052:5)

    Caused by: ConnectTimeoutError: Connect Timeout Error
        at onConnectTimeout (D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:182:24)
        at D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:129:46
        at Immediate._onImmediate (D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:168:33)
        at processImmediate (node:internal/timers:476:21)

The Output in the console looks like this

yarn run v1.22.19
warning package.json: No license field
$ "D:\Market Place\Backend-MarketPlace\node_modules\.bin\hardhat" deploy --tags marketplace --network Mumbai
htt-------------------------------------------------e8
1e---------------------------------------------------------------------------3
S--------------------------------------------------C
E----------------------------------------------------T
ht-----------------------------------------------------------------------------rO
Warning: Unused function parameter. Remove or comment out the variable name to silence this warning.
  --> contracts/tests/BasicNft.sol:24:9:
   |
24 |         uint256 tokenId
   |         ^^^^^^^^^^^^^^^


Warning: Function state mutability can be restricted to pure
  --> contracts/tests/BasicNft.sol:23:5:
   |
23 |     function tokenURI(
   |     ^ (Relevant source part starts here and spans across multiple lines).


Compiled 14 Solidity files successfully
6
----------------------------------------------------
------
reusing "Marketplace" at 0x0AD3C3059988229C255F80CA902f287B72d92E13
Deployed..
Verifying...
Verifying contract...
Nothing to compile
NomicLabsHardhatPluginError: Failed to obtain list of solc versions. Reason: Connect Timeout Error
    at getVersions (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\solc\version.ts:46:11)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at getLongVersion (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\solc\version.ts:18:20)
    at SimpleTaskDefinition.verifySubtask [as action] (D:\Market Place\Backend-MarketPlace\node_modules\@nomiclabs\hardhat-etherscan\src\index.ts:306:7)
    at Environment._runTaskDefinition (D:\Market Place\Backend-MarketPlace\node_modules\hardhat\src\internal\core\runtime-environment.ts:311:14)
    at Environment.run (D:\Market Place\Backend-MarketPlace\node_modules\hardhat\src\internal\core\runtime-environment.ts:159:14)
    at verify (D:\Market Place\Backend-MarketPlace\utils\verify.js:6:9)
    at Object.module.exports [as func] (D:\Market Place\Backend-MarketPlace\deploy\01_deploy_nft_marketplace.js:32:5)
    at DeploymentsManager.executeDeployScripts (D:\Market Place\Backend-MarketPlace\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (D:\Market Place\Backend-MarketPlace\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1052:5)

    Caused by: ConnectTimeoutError: Connect Timeout Error
        at onConnectTimeout (D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:182:24)
        at D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:129:46
        at Immediate._onImmediate (D:\Market Place\Backend-MarketPlace\node_modules\undici\lib\core\connect.js:168:33)
        at processImmediate (node:internal/timers:476:21)
verified......
------------------------
Done in 21.50s.

the deploy_marketplace file

const { network, deployments } = require("hardhat");
const {
  developmentchains,
  VERIFICATION_BLOCK_CONFIRMATIONS,
} = require("../helper-hardhat.config");
const {verify} = require("../utils/verify")

module.exports = async function ({ getNamedAccounts, deployments }) {
  const { deployer } = await getNamedAccounts();
  const { deploy, log } = deployments;
  const arguments = [];
  const waitBlockConfirmations = developmentchains.includes(network.name)
    ? 1
    : VERIFICATION_BLOCK_CONFIRMATIONS;
  console.log(waitBlockConfirmations);

  log("----------------------------------------------------");
  console.log("------");

  const nftmarketplace = await deploy("Marketplace", {
    from: deployer,
    args: arguments,
    log: true,
    waitConfirmations: waitBlockConfirmations,
  });
  log("Deployed..");
  if (
    !developmentchains.includes(network.name) &&
    process.env.POLYGONSCAN_API_KEY
  ) {
    log("Verifying...");
    await verify(nftmarketplace.address, arguments);
  }
  log("verified......");
  log("------------------------");
};
module.exports.tags = ["all", "marketplace"];

hardhat config

const { version } = require("chai");

require("@nomiclabs/hardhat-waffle");
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 SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL;
const PRIVATE_KEY = process.env.PRIVATE_KEY;
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY;
const POLYGONSCAN_API_KEY = process.env.POLYGONSCAN_API_KEY;
const POLYGON_RPC_URL = process.env.POLYGON_RPC_URL;
console.log(SEPOLIA_RPC_URL);
console.log(PRIVATE_KEY);
console.log(ETHERSCAN_API_KEY);
console.log(POLYGONSCAN_API_KEY);
console.log(POLYGON_RPC_URL);

module.exports = {
  solidity: {
    compilers: [
      { version: "0.8.9" },
      { version: "0.8.8" },
      { version: "0.4.19" },
      { version: "0.6.12" },
      { version: "0.6.0" },
    ],
  },
  defaultNetwork: "hardhat",
  networks: {
    hardhat: {
      chainId: 31337,
    },
    sepolia: {
      url: SEPOLIA_RPC_URL,
      accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
      saveDeployments: true,
      chainId: 11155111,
    },
    Mumbai: {
      url: POLYGON_RPC_URL,
      accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
      saveDeployments: true,
      chainId: 80001,
    },
  },
  etherscan: {
    apiKey: {
      sepolia: ETHERSCAN_API_KEY,
      polygonMumbai: POLYGONSCAN_API_KEY
    },
  },
  namedAccounts: {
    deployer: {
      default: 0,
    },
    player: {
      default: 1,
    },
  },
  mocha: {
    timeout: 500000,
  },
};

the Command was ### yarn hardhat deploy --tags marketplace --network Mumbai