HHE100: An internal invariant was violated: Invariant violated: neither timeouts or failures

[zhangwei983]

Version of Hardhat

3.1.0

What happened?

I'm using await connection.ignition.deploy() to deploy a buildModule, but got below error

HardhatError: HHE100: An internal invariant was violated: Invariant violated: neither timeouts or failures
    at _toText (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:138:9)
    at _convertExecutionError (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:96:58)
    at errorDeploymentResultToExceptionMessage (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:31:14)
    at ViemIgnitionHelperImpl.deploy (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition-viem/dist/src/internal/viem-ignition-helper.js:95:33)
    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)
    at async main (/home/vincent/repos/nft-contract/scripts/deploy.ts:16:26)

Minimal reproduction steps

This is my deploy.ts script

import hre from "hardhat";
import { USDT_CONFIG } from "./config.js";
import MockERC20Module from "../ignition/modules/MockERC20.js";

async function main() {
  const connection = await hre.network.connect();

  let usdtAddress = undefined;

  if (connection.networkName === "sepolia") {
    usdtAddress = USDT_CONFIG.sepolia;
  } else if (
    connection.networkName === "localhost" ||
    connection.networkName === "default"
  ) {
    const { MockUSDT } = await connection.ignition.deploy(MockERC20Module, {
      displayUi: true,
    });
    usdtAddress = MockUSDT.address;
  } else {
    throw new Error(`Unsupported network: ${connection.networkName}`);
  }
}

main().catch(console.error);

This is the MockERC20 module

import { buildModule } from "@nomicfoundation/hardhat-ignition/modules";

export default buildModule("MockERC20Module", (m) => {
  const MockUSDT = m.contract("MockERC20", ["Mock USDT", "USDT"]);

  return { MockUSDT };
});

When running npx hardhat run scripts/deploy.ts --network localhost against the network started by npx hardhat node, I got

[ MockERC20Module ] failed ⛔


HardhatError: HHE100: An internal invariant was violated: Invariant violated: neither timeouts or failures
    at _toText (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:138:9)
    at _convertExecutionError (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:96:58)
    at errorDeploymentResultToExceptionMessage (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition/src/helpers/error-deployment-result-to-exception-message.ts:31:14)
    at ViemIgnitionHelperImpl.deploy (/home/vincent/repos/nft-contract/node_modules/@nomicfoundation/hardhat-ignition-viem/dist/src/internal/viem-ignition-helper.js:95:33)
    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)
    at async main (/home/vincent/repos/nft-contract/scripts/deploy.ts:16:26)

Search terms

HHE100

[michalbrabec]

@zhangwei983 could you share the ERC20 contract you are using or a minimalistic version that causes the issue?

I have tried locally with the ERC20 template maintained by OpenZeppelin with Hardhat 3.1.0 and I am not able to reproduce the issue.

On a side note - we encountered a similar issue in tests, when a missing await violated the invariant and caused a had-to-analyse issue, but the error message there is different. I have reviewed and tested the code and did not find a similar cause #7722

[zhangwei983]

Sure, it's a very simple contract based on ERC20 from OpenZeppelin.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

// A mockup ERC20 token for testing purposes.
contract MockERC20 is ERC20 {
    constructor(string memory name, string memory symbol) ERC20(name, symbol) {}

    function mint(address to, uint256 amount) external {
        _mint(to, amount);
    }
}

[michalbrabec]

HI @zhangwei983 I am still unable to reproduce the issue, but I have put together a small repro repository UpgradeableContractsDemo. I was not able to reproduce the issue there.

Could you please try to reproduce the issue in the repository above and let me know if you are able to?
Feel free to modify the repo as needed to reproduce the issue.