Solana: Error creating program: TypeError: Expected Buffer

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

Here’s an article that explains what might be going wrong and how you can fix it:

Error: TypeError: Expected Buffer

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

What’s happening

In your code, you’ve imported the use client hook from @solana/wallet-adapter-react-ui. This hook allows you to create a new Program using the client object. However, when you pass a Page component as a prop to another React component (Client), it’s trying to render this component in some way that React can’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 use client hook can understand. 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-program-id'; // get the program ID using idl


  useEffect(() => {

    WalletMultiButton.createProgramClient({

      programId: programId,

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

    });

  }, [programId]);


  return ;

}

In this updated version of your code, we’re using the useEffect hook to create a new Program client using the WalletMultiButton component and the idl object. We’re then passing the programId variable as a prop 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.