Lesson 5 error: Error: VM Exception while processing transaction: invalid opcode during node deploy.js

[kasimselamat]

I ran into problem when trying to deploy the contract using the command node deploy.js. I think the problem lie on the ganache desktop version since I tried to run the ganache on the wsl using the command yarn run ganache and try to connect to the node using the given rpc url and it worked. I have tried to configure the setting for the desktop ganache that change the hostname to WSL but still run into the same problem. Below is the snippet of code that trying to connect to the blockchain node from the desktop ganache:

// desktop ganache: HTTP://172.30.144.1:7545 pk: 0x9df18b477d04fc0e60e355d905fb57c50db5089a219cac274992a13d28126585
  // vscode ganache: HTTP://127.0.0.1:8545 pk: 0x444c59c1d6a459736cc38d2ba063a5d4aa12ef1e87c5119ad39a75b0110feade
  const provider = new ethers.providers.JsonRpcProvider(
    "HTTP://172.30.144.1:7545"
  );
  const wallet = new ethers.Wallet(
    "0x9df18b477d04fc0e60e355d905fb57c50db5089a219cac274992a13d28126585",
    provider
  );

Below is the dependencies version from the package.json:

{
  "dependencies": {
    "ethers": "5.7.2",
    "fs": "^0.0.1-security",
    "ganache": "^7.9.2",
    "solc": "^0.8.27"
  },
  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e",
  "scripts": {
    "compile": "yarn solcjs --bin --abi --include-path node_modules/ --base-path . -o . SimpleStorage.sol"
  }
}

Below is the error message that I get went run the command node deploy.js (there are many error message but I just paste the last one since I think that is the root of the error):

error: Error: VM Exception while processing transaction: invalid opcode
        at getResult (/home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/providers/lib/json-rpc-provider.js:191:21)
        at processJsonFunc (/home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/web/lib/index.js:356:22)
        at /home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/web/lib/index.js:288:46
        at step (/home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/web/lib/index.js:33:23)
        at Object.next (/home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/web/lib/index.js:14:53)
        at fulfilled (/home/irfan/hh-fcc/ethers-simple-storage/node_modules/@ethersproject/web/lib/index.js:5:58)
        at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
      code: -32000,
      data: {
        hash: null,
        programCounter: 23,
        result: '0x',
        reason: null,
        message: 'invalid opcode'
      }
    },

Hope someone that know how to resolve this help me please

[wasim007choudhary]

Seems like for some reason the version of solidity you're using is causing issues... change the solidity version in your SimpleStorage.sol to

pragma solidity 0.8.19;

and then go ahead and upgrade the solidity compiler in your terminal by running

npm install --save-dev solc@0.8.19

and then finally you want to go ahead delete both the SimpleStorage abi and bin files, making sure to recompile with

npx solcjs --bin --abi --include-path node_modules/ --base-path . -o . SimpleStorage.sol
Should be good after that! Let me know if that works for you...