Metamask: Invalid parameters: must provide an Ethereum address

Here is a draft of the article:

Metamask Issues: Invalid Parameters Error in Ethers.js and Blocknative Integrations

As a developer building decentralized applications (DApps) using Web3 and popular libraries like ethers.js and Blocknative, it is not uncommon to encounter errors when connecting wallets. One specific issue that has been reported is an “Invalid Parameters” error when initiating interactions with MetaMask or OKX Wallet extensions in Chrome.

In this article, we will take a deep dive into what is going on behind the scenes and provide a step-by-step guide on how to resolve the issue.

What is causing the error?

When connecting to a wallet using ethers.js and Blocknative, both libraries rely on MetaMask or OKX Wallet as their default wallet provider. However, when these libraries try to initiate interactions with the wallet, they sometimes receive an “Invalid Parameters” error. This happens due to a mismatch between the expected parameters provided by the wallet and the actual parameters received.

The problem:

Let’s say you have a MetaMask wallet installed in your Chrome browser and you’re trying to connect it to an ethers.js and Blocknative instance using the ethers.js library. You’ve also installed the OKX Wallet extension for Chrome, which works as your default wallet provider. Here’s the typical flow:

• The ethers.js library attempts to create a new contract on the Ethereum network.

• The ethers.js library sends an ABI (Application Binary Interface) encoded transaction to MetaMask.

• MetaMask receives the transaction and executes it, passing the parameters as expected.

However, when the OKX Wallet extension is enabled as your default wallet provider, some of these parameters may be different or incorrect, resulting in an “Invalid Parameters” error in ethers.js.

The Solution:

To resolve this issue, you can try the following:

• Check OKX Wallet settings: Make sure you have installed the OKX Wallet Chrome extension and are using it as your default wallet provider.

• Check MetaMask settings:

  Double-check that MetaMask is configured to use OKX Wallet as its default wallet provider.

• Update the ethers.js library:

  

  Make sure you are running the latest version of ethers.js. You can update it by running npm install ethers@latest or yarn add ethers@latest.

• Provide the correct parameters: When initializing interactions with MetaMask or OKX Wallet, make sure to provide all required parameters as expected.

Additional tips:

• Make sure to use the exact same configuration for MetaMask and OKX Wallet when connecting using the ethers.js library.

• Please note that some parameter types (e.g. address) may be different between MetaMask and OKX Wallet, so you may need to update your code accordingly.

By following these steps, you should be able to resolve the «Invalid parameters» error issue with MetaMask or OKX Wallet connections when using ethers.js and Blocknative libraries. If you are still experiencing issues, feel free to provide more details about your setup and I will do my best to help you out.