Trying to use coption / COption

[olivbau]

I'm trying to use coption / COption I use the code provided by the doc

Code used:

import * as web3 from '@solana/web3.js';
import * as beet from '@metaplex-foundation/beet';
import * as beetSolana from '@metaplex-foundation/beet-solana';

type InstructionArgs = {
  authority: web3.PublicKey;
  maybePublickKey: beet.COption<web3.PublicKey>;
};

// Uses the BeetArgsStruct wrapper around BeetStruct
const createStruct = new beet.BeetArgsStruct<InstructionArgs>(
  [
    ['authority', beetSolana.publicKey],
    ['maybePublickKey', beet.coption(beetSolana.publicKey)],
  ],
  'InstructionArgs'
);

But I have a typescript error on beet.coption(beetSolana.publicKey) Do you have any idea where it came from?

Error:

Type 'FixableBeet<COption<PublicKey>, Partial<COption<PublicKey>>>' is missing the following properties from type 'BeetReadWrite<COption<PublicKey>, Partial<COption<PublicKey>>>': write, read, byteSize

[staccDOTsol]

This error message is indicating that the coption function is returning a FixableBeet type instead of a BeetReadWrite type. This is likely due to a version mismatch between the @metaplex-foundation/beet and @metaplex-foundation/beet-solana packages.

Try updating both packages to the latest version and see if the error persists. You can do this by running the following command in your terminal:

npm install @metaplex-foundation/beet @metaplex-foundation/beet-solana@latest

If the error still persists, you can try explicitly casting the return value of coption to BeetReadWrite like this:

['maybePublickKey', beet.coption(beetSolana.publicKey) as beet.BeetReadWrite<beet.COption<web3.PublicKey>, Partial<beet.COption<web3.PublicKey>>>],

This should resolve the error.