Metamask: I am getting the following error: RPC error: Invalid parameters: must specify an Ethereum address

Metamask Transaction Problem: Invalid Parameters

As a user of the MetaMask Chrome extension, you may have encountered an error when attempting to send transactions. In this article, we will dive deeper into the issue and provide steps to resolve it.

What is RPC error?

RPC (Remote Procedure Call) error is a standard in JavaScript and Ethereum that occurs when the application or browser cannot find the parameters specified for a function call. In your case, the error message indicates that the Invalid parameters: Ethereum address required error occurred when attempting to send transactions through MetaMask.

Why is this happening?

There are several reasons why you may encounter this issue:

• Insufficient permission – Make sure MetaMask has sufficient permissions on your account to access the transaction functionality.

• Incorrect script execution – Make sure your JavaScript code executes correctly in MetaMask. Try adding a console.log statement before sending transactions to verify if it works as expected.

• Invalid or missing parameters: Verify that the address you are trying to send transactions to exists and has sufficient balance.

How ​​to fix:

• Check MetaMask permissions

  

  : Make sure MetaMask has the necessary permission to access the transaction functionality on your Ethereum account:

• Go to MetaMask > Account Settings

• Click “Permissions”

• Select “Transaction” from the list of allowed actions

• Test the script execution: Add a console.log statement before sending transactions to verify if it works as expected:

let address = '0x...'; // Replace with your Ethereum address
function sendTransaction() {
try {
// Send transaction via MetaMask API (or Metamask Chrome extension)
// ...
console.log(Transaction successfully sent to ${address});
} catch (error) {
console.error('Error sending transaction:', error);
}
}

• Check for errors: If you still have issues, try checking the Ethereum Blockchain Explorer (e.g. Etherscan or Blockscout) to verify that the transaction was successfully transmitted.

Example use case:

Here is an updated example code snippet with some additional error handling:

let address = '0x...'; // Replace with your Ethereum address
function sendTransaction() {
try {
const txHash = await metamask.sendTransaction({
from: address,
to: '0x...', // Replace with recipient address
value: '1 ether',
gas: '20000',
gasPrice: '20 Gwei'
});
console.log(Transaction sent successfully: ${txHash});
} catch (error) {
console.error('Error sending transaction:', error);
alert('Transaction failed. Please try again later.');
}
}

By following these steps, you should be able to resolve the RPC Error and successfully send transactions using your MetaMask Chrome extension.

Additional Resources:

• MetaMask Documentation: <

• Ethereum blockchain explorer: [Etherscan]( or [Blockscout](

• MetaMask Chrome Extension Documentation: <

If you have any other questions or concerns, feel free to ask!