HH201 error when using with hardhat-toolbox

[StephanGerbeth]

Hi,

i get the following error, after required the package

require('hardhat-gas-reporter');

in my hardhat config. No additional config.

Error HH201: Could not set param output for task gas-reporter:merge because its name is already used.

It seems the legacy tasks in your index file create those problem.

Or am I doing something wrong?

Cheers

[cgewecke]

@StephanGerbeth Could you provide additional details:

• are you running the merge task?
• what version of hardhat are you using?

[StephanGerbeth]

@cgewecke i use hardhat@2.22.3 and this is my hardhat.config.cjs

require('@nomicfoundation/hardhat-toolbox');
require('@nomicfoundation/hardhat-ethers');
require('@nomicfoundation/hardhat-chai-matchers');
require('@unlock-protocol/hardhat-plugin');
require('hardhat-contract-sizer');
require('hardhat-gas-reporter');

const dotenv = require('dotenv-mono');

dotenv.config();

/** @type import('hardhat/config').HardhatUserConfig */
module.exports = {
  solidity: {
    version: '0.8.23',
    settings: {
      optimizer: {
        enabled: true,
        runs: 200
        // details: {
        //   yulDetails: {
        //     optimizerSteps: 'u'
        //   }
        // }
      },
      viaIR: true
    }
  },

  contractSizer: {
    alphaSort: true,
    disambiguatePaths: false,
    runOnCompile: true,
    strict: true
  },

  gasReporter: {
    enabled: false,
    currency: 'EUR',
    L2: 'base',
    coinmarketcap: '...'
  },

  paths: {
    cache: './cache/'
  },

  networks: {
    hardhat: {
      loggingEnabled: false,
      allowUnlimitedContractSize: true
    },
    // for mainnet
    'base-mainnet': {
      url: 'https://mainnet.base.org',
      accounts: [process.env.MASTER_PRIVATE_KEY],
      gasPrice: 1000000000
    },
    // for Sepolia testnet
    'base-sepolia': {
      url: 'https://sepolia.base.org',
      accounts: [process.env.MASTER_PRIVATE_KEY],
      gasPrice: 1000000000
    },
    // for local dev environment
    'base-local': {
      url: 'http://localhost:8545',
      gasPrice: 1000000000
    }
  },
  defaultNetwork: 'base-local'
};

i don't actively run the merge task.

[cgewecke]

@StephanGerbeth I think the problem is that hardhat-toolbox (at the top of your config) includes an earlier version (v1) of the gas reporter, so the plugin is being loaded twice.

Would it be possible to see if things work without the toolbox? The complete list of plugins it comes with is at the link below,

https://hardhat.org/hardhat-runner/plugins/nomicfoundation-hardhat-toolbox

[cgewecke]

Another option would be to coerce the version of hardhat-gas-reporter used by the toolbox to the latest version using something like yarn resolutions and let the toolbox load the plugin itself.

[StephanGerbeth]

@cgewecke thanks for the fast response. i didn't realized that hardhat-toolbox is loading an older version of hardhat-gas-reporter.

I use npm so I have to make an override

"overrides": {
    "hardhat-gas-reporter": "2.1.1"
  }

And it works perfectly. Thanks :)

[cgewecke]

@StephanGerbeth Oh good, Am going to reopen this issue for visibility so people can see your workaround.

The error message is very confusing and I suspect other people will run into this until the toolbox upgrades.