Lesson 5: Error: missing revert data when deploying Solidity contract with ethers.js and Ganache

[MahathirMohammadShuvo]

---

I'm having an issue deploying a Solidity smart contract using ethers.js and Ganache. I have a simple contract called SimpleStorage.sol:

// SPDX-License-Identifier: MIT
pragma solidity 0.8.21;

contract SimpleStorage {
    uint256 favoriteNumber;

    struct People {
        uint256 favoriteNumber;
        string name;
    }

    People[] public people;

    mapping(string => uint256) public nameToFavoriteNumber;

    function store(uint256 _favoriteNumber) public {
        favoriteNumber = _favoriteNumber;
    }

    function retrieve() public view returns (uint256) {
        return favoriteNumber;
    }

    function addPerson(string memory _name, uint256 _favoriteNumber) public {
        people.push(People(_favoriteNumber, _name));
        nameToFavoriteNumber[_name] = _favoriteNumber;
    }
}

I'm compiling the contract using the following command:

solcjs --bin --abi --include-path node_modules/ --base-path . -o . SimpleStorage.sol

My deployment script deploy.js is as follows:

const ethers = require("ethers");
const fs = require("fs-extra");

async function main() {
    let provider = new ethers.JsonRpcProvider("http://127.0.0.1:7545");
    let wallet = new ethers.Wallet("0x48241723b578d061470e42d6e7cb9625de70b24885ffc989f67f0ee6d78377e4", provider);
    const abi = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi", "utf8");
    const binary = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.bin", "utf8");
    const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
    console.log("Deploying, please wait...");
    const contract = await contractFactory.deploy();
    console.log(contract);
}

main();

When I run node deploy.js, I encounter the following error:

Error: missing revert data (action="estimateGas", data=null, reason=null, transaction={ "data": "<data>", "from": "0xd5e4312D240C69c58Cf0098e2Fd7bA3662151925", "to": null }, invocation=null, revert=null, code=CALL_EXCEPTION, version=6.8.0)

I replaced actual contract data with <data> for readability. I've verified that my local development blockchain (Ganache) is running, and the wallet has sufficient ETH. I also ensured that the ABI and binary files are correctly generated and used in the deployment script.

Any insights into what might be causing this error would be greatly appreciated. Thank you!

Node.js version: v18.16.0
ethers.js version: v6.8.0
solc version: v0.8.21
Ganache version: v2.7.1

[eik-1]

It should be
let provider = new ethers.providers.JsonRpcProvider("http://127.0.0.1:7545");
instead of
let provider = new ethers.JsonRpcProvider("http://127.0.0.1:7545");

[MahathirMohammadShuvo]

didn't work. here is the error:
PS C:\Users\User\Desktop\programming\learning\hh-fcc\New folder> node .\deply.js
TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')
at main (C:\Users\User\Desktop\programming\learning\hh-fcc\New folder\deply.js:5:39)
at Object. (C:\Users\User\Desktop\programming\learning\hh-fcc\New folder\deply.js:20:1)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
at Module.load (node:internal/modules/cjs/loader:1117:32)
at Module._load (node:internal/modules/cjs/loader:958:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
at node:internal/main/run_main_module:23:47

[eik-1]

Oh you are using new version of ethers. Mb, it doesn't reuire .providers
Your old way of writing code was correct.

[eik-1]

Please remove the ethers package from your node_modules.
Then use the command yarn add --dev ethers@5.7.2
Now you can use the code that Patrick was using in the video.
Currently you have new version of ethers which has a different way of deploying contract which you can see on their documentation website.

[arturasmckwcz]

this also solves ganache crashing with
Error: Callback was already called.

[alfaqi]

hi @MahathirMohammadShuvo
change solc version: v0.8.21 to solc version: v0.8.19 as well as the solidity

pragma solidity 0.8.19;

{
  "dependencies": {
    "fs-extra": "^11.1.1",
    "ethers": "^6.8.0",
    "solc": "^0.8.19"
  }
}

I hope this helps

[maulobo]

Oh, thank you! That really worked for me after a day of burning my mind!

[steinitz]

Has anyone been able to make this work with ethers ^6.8.0? I've tried the above suggestions but the error remains -- Error: missing revert data (action="estimateGas"...

I also tried following the ethers 6.8.1 contract-deployment doc but remained no wiser after scratching my head for an hour or so. I have to admire Patrick's skill in converting documentation into working code.

Edit:

On further reflection and on discovering Truffle's sunsetting of Ganache's and their recommendation to migrate to Hardhat, I think I'll skip actually implementing the Ganache part of the course.

[moody2times]

Check your ganache, you will see gas price and gas limit, copy them from the ganache app and enter them in your deploy method as below

const main = async () => {
	const provider = new ethers.providers.JsonRpcProvider(
		"http://127.0.0.1:7545"
	);

	const wallet = new ethers.Wallet(
		"0x98a70d1c37d4797a5259135df4006f57443009e3d56cc66d917625.............",
		provider
	);

	// grab files and read from them
	const ABI = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi", "utf8");
	const BIN = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.bin", "utf8");

	const factory = new ethers.ContractFactory(ABI, BIN, wallet);
	console.log("deploying contract...");
	await factory.deploy({ gasPrice: 20000000000, gasLimit: 6721975 });
};

And make sure to downgrade your solc version to 0.8.8 and solidity compiler to 0.8.7 to avoid further errors.

[steinitz]

Thanks @mudiagauwojeya for your reply

That code looks close to Patrick's version. Is it his version exactly, or did you make a change?

Thanks for your details on version of solc and solidity. I've moved on to the hardhat section of the course, but f I decide to revisit this section what you've written will be helpful.

[moody2times]

I made changes.

You're welcome.

[semz-ui]

Hello Mudiagauwojeya,

I am currently having this same issue anyway you can put me through please, what version solc and ether should i use? .. Please thank you.

[semz-ui]

No worries, mate; I think I made it work already. All I did was copy Patrick's package.json file, deleted node_modules, and ran yarn. So when I ran node deploy.js, it worked.

[moody2times]

If it matters why it worked, it is simply because you're using the exact same version of solc and ethersjs that Patrick is using. And this problem is related to solc and ethersjs version anyways. So, well done.

At the time of recording, Patrick used version 5.7ish of the ethersjs but the current version is 6^. There has been some breaking changes.

[semz-ui]

I need to know, is there any code snippet for solc that could work for future purposes