Getting invalid opcode error when the simulation should work properly

[sanjukammath]

Version of Hardhat

2.22.6

What happened?

I have created a hardhat forked avalanche network and am trying to send a simple approval transaction to the blob token. It is failing with the error:

{"jsonrpc":"2.0","id":44,"error":{"code":-32603,"message":"Error: VM Exception while processing transaction: invalid opcode","data":{"message":"Error: VM Exception while processing transaction: invalid opcode","txHash":"0xa2f2c330ec0d3cba23d6daaed95135f2d4c5f02e26aba0dbb6bab9fdec396ffc","data":"0x"}}}

Minimal reproduction steps

Create a hardhat fork using the following config:

import "tsconfig-paths/register";

const config = {
  solidity: "0.8.17",
  networks: {
    hardhat: {
      chainId: 31337,
      gasMultiplier: 1,
      hardfork: "istanbul",
      accounts: [],
    },
  },
};

export default config;

npx hardhat --config <your file path> node --fork <your avalanche url>

In your code try to send this transaction using impersonated signer:

                        await provider.send("hardhat_impersonateAccount", [
                          fromAccount,
                        ]);
                        const impersonatedSigner = provider.getSigner(
                         from
                        );
                        await impersonatedSigner.sendTransaction(
                          impersonatingTransaction
                        );

Actual values used

impersonatingTransaction: {
    to: '0x334efd1aa0caf4b9b206dd8b9002b7172fc805e6',
    data: '0x095ea7b3000000000000000000000000111111125421ca6dc452d289314280a0f8842a65ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
    value: '0x0',
    gasLimit: 800000,
    gasPrice: 0,
    chainId: 31337
  },
  from: '0xEE37005b86410cA49991d8bbC78Ad94316aF2A6e'

Search terms

avalanche

[schaable]

I just tested this locally and it works as expected. I noticed a couple of minor issues in your sample code. You’re missing the await keyword on the second statement, and you’re using both fromAccount and from, which should hold the same value. Here’s the code I used for testing:

async function main() {
  const fromAccount = "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266";
  const toAccount = "0x70997970C51812dc3A010C7d01b50e0d17dc79C8";

  const impersonatedSigner = await hre.ethers.getImpersonatedSigner(fromAccount);
  await impersonatedSigner.sendTransaction({
    to: toAccount,
    value: hre.ethers.parseEther("1.0"),
    gasLimit: 21000,
  });
}

I hope this helps! Let me know if you have any other questions.