Unrecognized chain ID "0x14a34" Try adding the chain using wallet_switchEthereumChain first.

[pegasus4me]

What is this about?

Hello There!
When I try to switch network with "wallet_switchEthereumChain" I got this error -32603 telling me that the chainId is not recognised, I have double checked and everything seems good on my code the chain id for "Base sepolia" is correct so I don't know why I got this error. Thanks!
The code where the error come from :

  switchNetwork: () => Promise<void>
} {
  const { provider, chainId } = useWalletData()
  const switchNetwork = useCallback(async () => {
    if ((provider == null) || !chainId) {
      console.log('Provider or chainId is missing')
      return
    }

    console.log('Attempting to switch network to:', `0x${Number(ChainId.SEPOLIA).toString(16)}`)

    try {
      await window.ethereum?.request({
        method: 'wallet_switchEthereumChain',
        params: [{ chainId: `0x${Number(ChainId.SEPOLIA).toString(16)}` }]
      })
      console.log('Network switched successfully')
    } catch (switchError: any) {
      console.log('Error switching network:', switchError)

      // This error code indicates that the chain has not been added to MetaMask
      if (switchError.code === 4902) {
        console.log('Chain not found. Adding new chain...')
        try {
          await window.ethereum?.request({
            method: 'wallet_addEthereumChain',
            params: [{
              chainId: `0x${Number(ChainId.SEPOLIA).toString(16)}`,
              rpcUrls: ['https://base-sepolia-rpc.publicnode.com'], 
              chainName: 'Base sepolia', 
              nativeCurrency: {
                name: 'ETH',
                symbol: 'ETH',
                decimals: 18
              },
              blockExplorerUrls: ['https://explorer-sepolia.etherscan.io']
            }]
          })
          console.log('New chain added successfully')
        } catch (addError: any) {
          console.error('Error adding new chain:', addError)
        }
      }
    }
  }, [provider, chainId]) ```


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[pegasus4me]

open on Bug

[Wynnfan]

How to fix it