![How to fix MetaMask - RPC Error: Expected 0x-prefixed, unpadded, non-zero hexadecimal string 'chainId' How to fix MetaMask - RPC Error: Expected 0x-prefixed, unpadded, non-zero hexadecimal string 'chainId'](https://naftalimurgor.com/static/img/rpc-error-metamask.png)
How to fix MetaMask - RPC Error: Expected 0x-prefixed, unpadded, non-zero hexadecimal string 'chainId'
![contract development - Setup Ganache with Metamask. What and where is a Chain ID? - Ethereum Stack Exchange contract development - Setup Ganache with Metamask. What and where is a Chain ID? - Ethereum Stack Exchange](https://i.stack.imgur.com/kL4qv.png)
contract development - Setup Ganache with Metamask. What and where is a Chain ID? - Ethereum Stack Exchange
![Unable to add additional RPCs for a given chainid · Issue #13249 · MetaMask/ metamask-extension · GitHub Unable to add additional RPCs for a given chainid · Issue #13249 · MetaMask/ metamask-extension · GitHub](https://user-images.githubusercontent.com/4020296/148644386-e141450c-5a21-4605-873d-f1de3d63201f.png)
Unable to add additional RPCs for a given chainid · Issue #13249 · MetaMask/ metamask-extension · GitHub
![BNB Chain on Twitter: "Having issues using #Binance Smart Chain with MetaMask? Update your Binance Smart Chain 'Chain ID' in MetaMask to 56. If 56 doesn't work, try 0x38 https://t.co/j71eUg9IMH" / Twitter BNB Chain on Twitter: "Having issues using #Binance Smart Chain with MetaMask? Update your Binance Smart Chain 'Chain ID' in MetaMask to 56. If 56 doesn't work, try 0x38 https://t.co/j71eUg9IMH" / Twitter](https://pbs.twimg.com/media/El9tIYNUYAAtT3Y.png)