could not detect network

[QTTQ]

Ethers Version

v5

Search Terms

bsc

Describe the Problem

Error: could not detect network (event="noNetwork", code=NETWORK_ERROR, version=providers/5.6.4)
reason: 'could not detect network',
code: 'NETWORK_ERROR',
event: 'noNetwork'

Code Snippet

const provider = new ethers.providers.JsonRpcProvider("https://bsc-dataseed.binance.org/");
const getBalance_chan = async (address: string) => {
    return await provider.getBalance(address)
}

Contract ABI

"function balanceOf(address account) public view returns (uint256)",

Errors

Error: could not detect network (event="noNetwork", code=NETWORK_ERROR, version=providers/5.6.4) 
 reason: 'could not detect network',
  code: 'NETWORK_ERROR',
  event: 'noNetwork'

Environment

No response

Environment (Other)

No response

[ricmoo]

This means your network (or node, at least) does not support the eth_chainId RPC method. I believe on BSC this can be caused by CORS issues, or sometimes the backend is less reliable and doesn’t respond.

You can pass the network object in as the second parameter, and should probably use the StaticJsonRpcProvider instead of the normal JsonRpcProvider.

You can also check out this package: https://github.com/ethers-io/ancillary-bsc

Let me know if that helps. :)