Lesson 5: Error on contract.retrieve() on Alchemy

[MarceloVBrasil]

Hi guys,

following the tutorial I got this error as reponse:

Error: could not decode result data (value="0x", info={ "method": "retrieve", "signature": "retrieve()" }, code=BAD_DATA, version=6.6.4)
    at makeError (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/utils/errors.js:125:21)
    at assert (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/utils/errors.js:142:15)
    at Interface.decodeFunctionResult (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/abi/interface.js:780:31)
    at staticCallResult (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/contract/contract.js:230:35)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async staticCall (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/contract/contract.js:195:24)
    at async Proxy.retrieve (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/node_modules/ethers/lib.commonjs/contract/contract.js:235:20)
    at async main (/Users/marcelobrasil/Documents/studies/Blockchain/freeCodeCamp/ethers-simple-storage/deploy.js:41:35) {
  code: 'BAD_DATA',
  value: '0x',
  info: { method: 'retrieve', signature: 'retrieve()' }
}

and my code is as follows

async function main() {
    const provider = new ethers.JsonRpcProvider(RPC_URL);
    const wallet = new ethers.Wallet(PRIVATE_KEY, provider)
    const abi = fs.readFileSync("SimpleStorage_sol_SimpleStorage.abi", "utf8")
    const bin = fs.readFileSync("SimpleStorage_sol_SimpleStorage.bin", "utf8")
    const contractFactory = new ethers.ContractFactory(abi, bin, wallet)
    console.log("Deploying, please wait...")
    const contract = await contractFactory.deploy()
    console.log(`Contract Address: ${contract.target}`)

    const favoriteNumber = await contract.retrieve()
    console.log(`favorite number: ${favoriteNumber.toString()}`)
    const txResponse = await contract.store(7)
    const updatedFavoriteNumber = await contract.retrieve()
    console.log(`updated favorite number: ${updatedFavoriteNumber.toString()}`)
}

Thanks in advance

[alfaqi]

Please paste package.json file here

[MarceloVBrasil]

{
  "name": "ethers-simple-storage",
  "version": "1.0.0",
  "description": "",
  "main": "deploy.js",
  "scripts": {
    "compile": "solcjs --bin --abi --include-path node_modules/ --base-path . -o . SimpleStorage.sol",
    "start": "RPC_URL=https://eth-sepolia.g.alchemy.com/v2/2o5E-lOYh4rkGrruNSW4Df42hI-W0gb4 PRIVATE_KEY=1503ed163de74531733cb3c2529bec00c8693dd4067ad974963f25ad0d3a838a node deploy.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "dotenv": "^16.3.1",
    "ethers": "^6.6.4",
    "solc": "^0.8.8"
  }
}

[alfaqi]

change solc version to

"solc": "^0.8.7-fixed"

yarn add solc@^0.8.7-fixed