Mumbai deployment issue prevents the demo from working on Mumbai testnet

[Jan Z]

There's currently a bug on Mumbai where the deployed address is incorrectly output (NomicFoundation/hardhat#2162)

This is causing deploy.js to use the wrong address for deploying the NFT, which is causing setApprovalForAll(contractAddress, true); to be incorrect, because the NFT marketplace contract address is wrong. This is causing a problem when buying NFTs, because the market contract's address is never approved — causing lots of questions on the dev.to article.

This is happening across Infura, maticvigil, and other nodes.

Edit: the workaround here seems to get the right address: NomicFoundation/hardhat#2162 (comment)

Edit 2: The workaround deploy script works! Link: https://gist.github.com/janzheng/99813c042adb83581d0cb3b2d40d6541

Replace main() in deploy.js with:

async function main() {
  const [deployer] = await hre.ethers.getSigners();

  console.log(
    "Deploying contracts with the account:",
    deployer.address
  );

  let txHash, txReceipt
  const NFTMarket = await hre.ethers.getContractFactory("NFTMarket");
  const nftMarket = await NFTMarket.deploy();
  await nftMarket.deployed();

  txHash = nftMarket.deployTransaction.hash;
  txReceipt = await ethers.provider.waitForTransaction(txHash);
  let nftMarketAddress = txReceipt.contractAddress

  console.log("nftMarket deployed to:", nftMarketAddress);

  const NFT = await hre.ethers.getContractFactory("NFT");
  const nft = await NFT.deploy(nftMarketAddress);
  await nft.deployed();


  txHash = nft.deployTransaction.hash;
  // console.log(`NFT hash: ${txHash}\nWaiting for transaction to be mined...`);
  txReceipt = await ethers.provider.waitForTransaction(txHash);
  let nftAddress = txReceipt.contractAddress

  console.log("nft deployed to:", nftAddress);
}

[latonet]

Thanks for this. Will the change also work if the script is deployed to the polygon mainnet?

How do I redeploy to the same contract addresses?

How did dabit3 show the original script working at the end of the tutorial?

[ljinkai]

This is fix my big problem, thx

[latonet]

Hi, still can't Buy, nothing happens. I updated deploy.js with your code, it deployed to new contract addresses, works like before but i can't Buy, only creates NFT in marketplace and can see it in created items.

This is the Buy buttton code: <button class="bg-green-500 hover:bg-green-700 text-white font-bold py-2 px-4 rounded-full" onClick={() => buyNft(nft)}>Buy</button>

Thanks

[latonet]

Just noticed the transaction hash output for me is for the NFT contract not the Market contract ........ how can i check the transaction hash for the Market contract?

I updated deploy.js, reinstalled dependencies and deleted artifacts folder, recompiled. Still can't buy from marketplace, can create NFTs to show in it.

How do i redeploy to the same contract? When i run the script it creates a new contract with same problems.

Thanks

[latonet]

This is fix my big problem, thx

Didn't fix Buy for me, what did you do?

[ljinkai]

This is fix my big problem, thx

Didn't fix Buy for me, what did you do?

@latonet I just fix this problem. Not you mentioned situation. #21