Solana: Error creating program: TypeError: Expected Buffer

I see what’s going on here. The error message suggests that there’s a problem with your code’s Buffer type, and it looks like you’re trying to pass a React component (“Page”) as a prop to another React component (the client).

This article explains what might be wrong and how to fix it:

Error: TypeError: Expected Buffer

Solana: Error creating program: TypeError: Expected Buffer

When you try to create a new “program” using the “use client” hook, the “TypeError: Expected Buffer” error message suggests that there’s a problem with the data passed to this function. More specifically, it looks like you’re trying to pass a React component (“Page”) as a prop to another React component (the client), but React doesn’t understand how to handle such props.

What’s happening

You’ve imported the “use client” hook from “@solana/wallet-adapter-react-ui” in your code. This hook allows you to create a new “program” using a “client” object. However, when you pass a side component as a suggestion to another React component (the client), it tries to render that component in a way that React doesn’t understand.

Fixing the issue

To fix this error, you need to make sure that your React components are being passed data in a format that the “use client” hook understands. Specifically, you need to use the idl object from @solana/wallet-adapter-react-ui to get the program ID and other metadata.

Here’s an updated version of your code that fixes this issue:

import { useEffect } from 'react';

import WalletMultiButton from @solana/wallet-adapter-react-ui;

import idl from @/app/idl/idl.json;

const Page = () => {

// render your page component here

};

export default function App() {

const programId = 'your programId'; // get the programId using idl

useEffect(() => {

WalletMultiButton.createProgramClient({

programId: programId,

idl: idl, // use the idl object to pass the data to the client

});

}, [programId]);

return ;

}

In this updated version of your code, we use the useEffect hook to create a new program using the WalletMultiButton component and the idl object. We then pass the “programId” variable as a suggestion to our “Page” component.

By following these steps, you should be able to fix your error and get your React components working with the “use client” hook from “@solana/wallet-adapter-react-ui”.

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