Using Luzid Local Validator: Running Into “Unsupported Program Id” Error When Calling create_associated_token_account

As a developer using Luzid, a popular blockchain testing platform, you’ve likely encountered the Unsupported Program ID error while executing certain instructions on your local validator. This issue can be frustrating, especially when trying to test and validate token creation and minting processes.

In this article, we’ll delve into the details of the problem and provide possible solutions to resolve it.

What is Luzid Local Validator?

Luzid is a blockchain testing platform that allows developers to simulate various use cases on their local Ethereum testnet. The platform provides a user-friendly interface for creating wallets, deploying contracts, and executing transactions.

The Unsupported Program ID Error

When an instruction has an unsupported program ID, it indicates that the transaction or contract call requires a specific program ID that is not supported by Luzid’s local validator. In this case, when calling create_associated_token_account, the error occurs because Luzid does not support creating associated tokens with program IDs other than 0x01.

Why Does This Happen?

The Unsupported Program ID error typically occurs due to outdated or incompatible dependencies in your codebase. When a contract or instruction uses an unsupported program ID, it triggers the validation process on Luzid’s local validator. However, if the validator does not support this ID, it returns an error message indicating that the program ID is invalid.

Possible Solutions

To resolve this issue, consider the following steps:

• Update Luzid dependencies: Ensure you have updated your Luzid dependencies to the latest versions. You can do this by running npm install or yarn install in your terminal.

• Check your contract code: Review your contract code to identify any instructions that use an unsupported program ID. Update these instructions to match the supported IDs, if possible.

• Use a different local validator instance

  : If updating Luzid dependencies does not resolve the issue, try creating a new local validator instance with a different configuration or IP address. This may help isolate the problem.

• Contact Luzid support: Reach out to Luzid’s support team for further assistance. They may be able to provide additional guidance or solutions specific to your use case.

Example Code Snippet

To give you a better idea of ​​how this error can manifest, here is an example code snippet from a simple contract on the Solana blockchain:

import { ProgramId } from '@solana/web3.js';

import { createAssociatedTokenAccount } from './create_associated_token_account';

import { create_luzid_validator } from './create_luzid_validator';


const program_id = ProgramId.fromPubkey('your_program_id');


async function main() {

  const validator = await create_luzid_validator();

  // Create associated token account

  const result = await create_associated_token_account(validator);

}

In this example, the create_associated_token_account instruction uses an unsupported program ID (0x01). To resolve this issue, you would need to update the instruction to match a supported program ID.