NFT marketplace part sell section not wroking

[mazhar11-cou]

Unhandled Runtime Error
TypeError: Cannot read properties of undefined (reading 'NftMarketplace')

Source
pages\sell-nft.js (13:59) @ Home

 12 |     const chainString = chainId ? parseInt(chainId).toString() : "31337"
> 13 |     const marketplaceAddress = networkMapping[chainString].NftMarketplace[0]
    |                                                           ^
 14 |     const dispatch = useNotification()
 15 |     const [proceeds, setProceeds] = useState("0")```

[krakxn]

Make a repo, I will look into it

[mattjaf]

make sure your on the right network in your metamask

If your working on it in hardhat node create a network for hardhat.

the error is saying you dont have the contract in your networkingmappings file

[shoaibshebi]

Hey @mazhar11-cou

I was facing the same issue

Your chaindId should be 31337 on the hardhat network in metmask like this:

Your error is generating due to chainString

👍