Solana: Errors "failed to deserialize solana_sdk"

Troubleshooting "failed to deserialize solana_sdk::transaction::versioned::VersionedTransaction: io error: failed to fill whole buffer"

The error message indicates that the transaction failed due to an issue in deserializing the transaction data. This commonly happens when the transaction format does not meet the required specifications or is improperly serialized.

Error Example:

{
    "statusCode": 403,
    "errorCode": "sol.broadcast.failed",
    "message": "Unable to broadcast transaction.",
    "cause": "failed to send transaction: failed to deserialize solana_sdk::transaction::versioned::VersionedTransaction: io error: failed to fill whole buffer"
  }

Common Causes

1. Invalid Transaction Serialization:
   1. The transaction data (txData) is incorrectly formatted or incomplete.
   2. Double-sending the same transaction data, which conflicts with the expected format.
2. Version Incompatibilities:
   1. Using a mismatched version of the Solana SDK or libraries.
   2. Find information about Versioned Transactions HERE.
3. Duplicate Transaction Sending:
   1. The transaction is sent twice (e.g., once with sendAndConfirmTransaction and again with sendRawTransaction).

Troubleshooting Steps

1. Verify the Transaction Data:
   1. Ensure the txData you are broadcasting is complete and properly serialized.
   2. Use a trusted library like @solana/web3.js to build and serialize the transaction.
2. Avoid Double-Sending Transactions:
   1. If using sendAndConfirmTransaction, do not call sendRawTransaction with the same transaction.
   2. sendAndConfirmTransaction already broadcasts and confirms the transaction, returning the transaction signature upon success.
3. Inspect Recent Changes in Your Code:
   1. Check if updates to the Solana SDK or your code introduced serialization or transaction-building errors.
4. Check RPC Node and Network Health:
   1. https://status.tatum.io/
   2. Test your network stability with a simple transaction.
5. Enable Detailed Logging:
   1. Use debug logs in your code to examine the transaction-building process and identify where the deserialization issue might occur.

📘

Find Solana Serialization Official Documentation HERE