Lesson 9: Hardhat Node Stopped Working

[074f4d1c]

Hello,

So I am not actually on Lesson 9, I already did it, but when I checked back on it and ran yarn hardhat node, it gave this error-

Error HH604: Error running JSON-RPC server: ERROR processing skip func of /Users/user/hh-fcc/hardhat-lottery-fcc/deploy/00-deploy-mocks.js:
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
    at Object.<anonymous> (/Users/user/hh-fcc/hardhat-lottery-fcc/node_modules/@nomiclabs/hardhat-ethers/src/internal/ethers-provider-wrapper.ts:4:61)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Function.Module._load (node:internal/modules/cjs/loader:878:12)
    at Module.require (node:internal/modules/cjs/loader:1061:19)
    at require (node:internal/modules/cjs/helpers:103:18)
    at Object.<anonymous> (/Users/user/hh-fcc/hardhat-lottery-fcc/node_modules/@nomiclabs/hardhat-ethers/src/internal/provider-proxy.ts:7:1)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1213:10)

I also migrated from Yarn Classic to Yarn Berry recently, so it might have something to do with this problem?

Also, I looked at similar posts, and they solved the problem by running export NODE_OPTIONS=--openssl-legacy-provider and unset NODE_OPTIONS. I tried that and reran yarn hardhat node, but Yarn just prompted me to run yarn install because Yarn doesn't see the package responsible for running yarn hardhat node in the yarn.lock file. I ran yarn install and got this error at the end-

➤ YN0001: │ ethereumjs-abi@npm:^0.6.8: Failed listing refs
➤ YN0001: │   Repository URL: ssh://git@github.com/ethereumjs/ethereumjs-abi.git
➤ YN0001: │   Ssh Error: connect to host github.com port 22: Operation timed out
➤ YN0001: │   Fatal Error: Could not read from remote repository.
➤ YN0001: │   Exit Code: 128
➤ YN0000: └ Completed in 1m 16s
➤ YN0000: Failed with errors in 1m 16s

Here's my 00-deploy-mocks.js-

const { network } = require("hardhat")
const { developmentChains } = require("../helper-hardhat-config")

const BASE_FEE = ethers.utils.parseEther("0.25")
const GAS_PRICE_LINK = 1e9

module.exports = async function ({ getNamedAccounts, deployments }) {
    const { deploy, log } = deployments
    const { deployer, player } = await getNamedAccounts()
    const chainId = network.config.chainId
    const args = [BASE_FEE, GAS_PRICE_LINK]

    if (developmentChains.includes(network.name) || chainId == 31337) {
        log("Local network detected. Deploying mocks...")
        await deploy("VRFCoordinatorV2Mock", {
            contract: "VRFCoordinatorV2Mock",
            from: deployer,
            log: true,
            args: args,
        })
        log("Mocks successfully deployed.")
        log("------------------------------------------------------------")
    }
}

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

[umairahmed88]

remove this
const { network } = require("hardhat")

and add
const { network, ethers } = require("hardhat");

[074f4d1c]

Sorry, it didn't work. After I add it and ran yarn hardhat node, I got:

Internal Error: root-workspace-0b6124@workspace:.: This package doesn't seem to be present in your lockfile; run "yarn install" to update the lockfile
    at P0.getCandidates (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:435:5145)
    at yf.getCandidates (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:391:1264)
    at /Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:439:7693
    at of (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:390:11070)
    at ge (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:439:7673)
    at async Promise.allSettled (index 0)
    at async $s (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:390:10398)
    at async /Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:439:8205
    at async ti.startProgressPromise (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:390:47579)
    at async je.resolveEverything (/Users/user/.cache/node/corepack/yarn/3.4.1/yarn.js:439:6233)

And I can't run yarn install because I get the YN0001 errors, which is this:

➤ YN0001: │ ethereumjs-abi@npm:^0.6.8: Failed listing refs
➤ YN0001: │   Repository URL: ssh://git@github.com/ethereumjs/ethereumjs-abi.git
➤ YN0001: │   Ssh Error: connect to host github.com port 22: Operation timed out
➤ YN0001: │   Fatal Error: Could not read from remote repository.
➤ YN0001: │   Exit Code: 128
➤ YN0000: └ Completed in 1m 16s
➤ YN0000: Failed with errors in 1m 16s

However, when I run hh node instead of yarn hardhat node, it seems to print out the original HH604 error.

[alymurtazamemon]

@Undefined-github Which ethers version are you using? make sure it should be less than 6 because version 6 is in beta.

[wodeche]

my ethers version is @6.0.8 , how can I fix it ?

[alymurtazamemon]

@wodeche run command npm i --save-dev ethers@5.7.2