Discussion on: How to Build a Full Stack NFT Marketplace - V2 (2022)

[Jan Z]

This is happening because of a Mumbai error, outputting the wrong contract address. This causes the NFT contract to not approve the Marketplace's contract address to sell the NFTs. Redeploy with this script, by replacing 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, i've replied to your same post in github.

[jfreddy82s]

Thanks this work for me for nonce error on deploy multiple contracts