Hardhat Ganache-cli ProviderError: HttpProviderError http.ts:78:19

web3master

I am using ganache-cli with mainnet fork, but I use Hardhat with Ethers library to deploy the contract.

Here is an example:

Contract Code (HelloWorld.sol):

// SPDX-License-Identifier: MIT
pragma solidity <=0.8.10;

contract HelloWorld {

    string saySomething;

    constructor() {
        saySomething = "Hello World!";
    }

    function speak() public view returns(string memory) {
        return saySomething;
    }
}

Deployment Code:

const { ethers } = require("hardhat");
const config = require("../config.json")
const fs = require('fs');

async function main() {

	const [deployer] = await ethers.getSigners();

	console.log(
	"Deploying contracts with the account:",
	deployer.address
	);

	console.log("Account balance:", (await deployer.getBalance()).toString());

	const HelloWorld = await ethers.getContractFactory("HelloWorld");
	const contract = await HelloWorld.deploy();

	console.log("Contract deployed at:", contract.address);
}

main()
  .then(() => process.exit(0))
  .catch(error => {
	console.error(error);
	process.exit(1);
  });

Deployment Output:

npx hardhat --network ganache  run scripts/deployHelloWorld.js

Deploying contracts with the account: 0x3244e66158295043AF04548925EbaE25cCC73c8F
Account balance: 1000000000000000000000
ProviderError: HttpProviderError
    at HttpProvider.request (/Users/dapp/node_modules/hardhat/src/internal/core/providers/http.ts:78:19)
    at LocalAccountsProvider.request (/Users/dapp/node_modules/hardhat/src/internal/core/providers/accounts.ts:181:36)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at EthersProviderWrapper.send (/Users/dapp/node_modules/@nomiclabs/hardhat-ethers/src/internal/ethers-provider-wrapper.ts:13:20)

adding:

  try {
    const contract = await HelloWorld.deploy();
  } catch (e) {
      console.log(e.message);
      throw e;
  }

It gives more info:

npx hardhat --network ganache  run scripts/deployHelloWorld.js
Deploying contracts with the account: 0x3244e66158295043AF04548925EbaE25cCC73c8F
Account balance: 1000000000000000000000
VM Exception while processing transaction: Transaction's maxFeePerGas (2000000000) is less than the block's baseFeePerGas (7978231074) (vm hf=london -> block -> tx)

Solution

add gasPrice: 50000000000
to hardhat.config.js

  networks: {
    ganache: {
      gasPrice: 50000000000,
      url: "http://127.0.0.1:7545",
      accounts: [privateKey]
    }
  }