Can't deploy to hardhat network

[Alejandrosd97]

I'm currently on lesson 7 but since lesson 6 everytime I run the command 'yarn hardhat deploy' I receive the same error and I have no idea of what's happening. If I run 'yarn hardhat deploy --network rinkeby' the contract gets deployed correctly on the rinkeby network. It doesn't matter if I specify '--network hardhat', I receive the same error. I've been coding along until now so I don't know if I'm missing something but I think my code is the the same than in the video. The same error occurs when I run 'yarn hardhat node' and 'yarn hardhat test' but in this case it doesn't say:

failed to get chainId, falling back on net_version...

But if I run 'yarn hardhat' it returns the list of tasks, and other tasks such as compile or clean are executed correctly.

This is the error I receive:

$ C:\Users\Alejandro\Desktop\fund-me\node_modules\.bin\hardhat deploy
Nothing to compile
failed to get chainId, falling back on net_version...
An unexpected error occurred:

C:\Users\Alejandro\Desktop\fund-me\node_modules\core-js-pure\internals\to-string.js:6
  if (classof(argument) === 'Symbol') thr


SyntaxError: Unexpected end of input
    at Object.compileFunction (node:vm:352:18)
    at wrapSafe (node:internal/modules/cjs/loader:1032:15)
    at Module._compile (node:internal/modules/cjs/loader:1067:27)
    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)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (C:\Users\Alejandro\Desktop\fund-me\node_modules\core-js-pure\internals\string-multibyte.js:3:16)
    at Module._compile (node:internal/modules/cjs/loader:1103:14)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Thank you

[PatrickAlphaC]

What's your hardhat.config.js look like?

[Alejandrosd97]

That's my hardhat.config.js:

require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("hardhat-gas-reporter");
require("solidity-coverage");
require("hardhat-deploy")

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html


// 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.PRIVATE_KEY


module.exports = {
  defaultNetwork: "hardhat",
  solidity: {compilers :[
    {version : "0.8.4"},
    {version : "0.6.6"}
  ]},
  networks: {
    hardhat: {
      chainId: 31337,
    },
    rinkeby: {
      url: RINKEBY_RPC_URL,
      accounts: [PRIVATE_KEY],
      blockConfirmations :3,
      chainId :4,
    },
  },
  gasReporter: {
    enabled: false,
    currency: "USD",
  },
  etherscan: {
    apiKey: ETHERSCAN_API_KEY,
  },
  namedAccounts: {
    deployer: {
      default : 0
    },
    user:{
      default : 1
      }
  }
};

I think the problem occurs while starting the JSON-RPC HTTP server, because when I run 'yarn hardhat node' it returns the following error:

Error HH604: Error running JSON-RPC server: Unexpected end of input

Thank you

[PatrickAlphaC]

Does this help?

https://forum.openzeppelin.com/t/providererror-must-be-authenticated-deploying-to-rinkeby/4618

[Gnome101]

I had this same problem, and I found that I had a spelling discrepancy between my .env file and my hardhat config file. I would recommend console.logging out your RPC URL and seeing if it is returning the correct http url. I would also check on your url to see if it is put in correctly. I wish you luck.