Lesson 5 - Ethers.js > Compiler stopped working

[DorianDaSilva]

I am getting the following errors after trying to run
node deploy.js with Ganache UI

Box on lower left of the screen when editing settings.json>>>
solc error: TypeError: solc.compileStandardWrapper is not a function

Terminal>>>

TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')

SimpleStorage.sol - line 2

pragma solidity ^0.8.14

SyntaxError: Source file requires different compiler version (current compiler is 0.4.17+commit.bdeb9e52.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
pragma solidity ^0.8.14;

NOTE: Compiler was working fine and version was set properly.

Compiler version must be fixed [compiler-fixed]

Everything was fine before trying to deploy to ganache

async function main() {
  const provider = new ethers.provider.JsonRpcProvider("HTTP://0.0.0.0:8545");
  const wallet = new ethers.Wallet(
    "c893......................6c9a13081",
    provider
  );

Now, all compiler settings have disappeared from preferences, only get the option to edit json file and settings.json edits are not working.

Can anyone tell me what the hell is going on and how to fix this, plz?

[PatrickAlphaC]

What does your deploy.js look like?

What's your package.json look like? Did you run the compile script?

[DorianDaSilva]

@PatrickAlphaC Hi Patrick, thank you for taking the time to help me.

I managed to fix the issue with the compiler and finish the lesson but now I am having the same compiler issue in Lesson 6.

I ran yarn add solc@0.8.12

it is showing in both package.json

{
  "name": "hardhat-simple-storage-fcc",
  "version": "1.0.0",
  "license": "MIT",
  "devDependencies": {
    "@nomiclabs/hardhat-ethers": "^2.0.0",
    "@nomiclabs/hardhat-waffle": "^2.0.0",
    "chai": "^4.2.0",
    "ethereum-waffle": "^3.0.0",
    "ethers": "^5.0.0",
    "hardhat": "^2.9.7"
  },
  "dependencies": {
    "solc": "^0.8.12"
  }
}

& hardhat.json

require("@nomiclabs/hardhat-waffle");

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
  const accounts = await hre.ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

// 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
 */
module.exports = {
  solidity: "^0.8.12",
};

but I still get this error on pragma line for SimpleStorage.sol

/mnt/c/Users/doria/hardhat-simple-storage-fcc/contracts/SimpleStorage.sol:2:1: SyntaxError: Source file requires different compiler version (current compiler is 0.4.17+commit.bdeb9e52.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
pragma solidity ^0.8.8; // 0.8.12 (Latest)
^---------------------^

I disabled extensions conflicting with hardhat + solidity extension and tried eveery version of solidity solhint but VSCode is still return v0.
4.17+ and I really don't know what else I can do to fix it. Help plz!

[DorianDaSilva]

@PatrickAlphaC Figured out the issue.

1-Installed solhint plugin from hardhat docs

https://hardhat.org/plugins/nomiclabs-hardhat-solhint

2-Deleted solidity+hardhat extension
3- removed solhint extension

thank you for making this course! I hope you keep on making them.

[PatrickAlphaC]

awesome work!!

[DorianDaSilva]

Thank you!!